​Related Articles​

Spraying with infusion of Inta-vir will help get rid of melon aphids:

Zelentsy properties and preliminary preparation

To prevent gray and white rot, you should disinfect the soil and reduce watering. From gray rot, wood ash is processed.

The disease begins with a sharp change in day and night temperatures. The infection can remain on greenhouse structures and on plant seeds.​

Soil and planting seedlings

After that, we rake the earth from the stem of the plant to the root and process the stem with the prepared mixture with a brush, we process it from the root and to a height of 12 cm.

Do the processing of cucumbers, both in the greenhouse and on open field, you should choose warm and calm weather. This work is best done in the morning.

Control measures:

then add 1 tablespoon of liquid soap

This disease leads to damage to the shoots, flowers, ovary and underside of the leaf. Causes wrinkling and curling. As a rule, damage occurs in the second part of summer. This disease develops quite quickly.

When carrying out mineral fertilizing, it is necessary to take into account the composition of the soil: potash fertilizers are used on floodplain, and nitrogen fertilizers on sandy soils.

plant care

One of the most popular and beloved vegetable crops deservedly is the cucumber. Since the thermophilicity of the cucumber does not allow it to be grown everywhere in the open field, the greenhouse and hotbed have become a good help in growing this vegetable. In addition, growing cucumbers in a greenhouse makes it possible to get earlier harvests even in regions with moderate temperatures.​

Take 10 liters of water and a tablet of the drug;

In the greenhouse, wood ash is also used from various types spotting and anthracnose. For prevention, lightly sprinkle cucumber leaves with water and pollinate with ash. If treated in advance, problems and the use of chemicals can be avoided. When working with cucumbers, you should follow the basic rule: it is better to process the bushes before, not after. Only in this way will you get a good harvest.

Control measures:

Crushed coal can also be applied to the places of manifestation of the disease. chalk, ash and dry well. When irrigating, try not to spray the jet too much, irrigate only the soil and you should make sure that the soil does not cover the infected areas.​

You can fight this disease with the more effective Barrier, its three caps should be diluted with 1 liter of water. At the first manifestation of white plaque on plants, they should immediately be treated with a solution of mullein: you need to take Signs of the disease:

leave for a day

The main diseases of cucumbers

A yellowish lesion appears first, followed by dark green. Within a few days, the disease occurs throughout the lower part of the leaf, flowers and leaves.

• Another way to increase the yield of cucumbers in a greenhouse is to increase pollination by using sugar bee baits. On warm sunny days, when airing greenhouses, it is necessary to attract bees by feeding them with sugar syrup, which is insisted on corollas plucked from male flowers.
• dilute the mixture;
• After the appearance of powdery mildew, the leaves of the plant are sprayed with a mixture of mullein:
• Seeds should be disinfected before planting. Do disinfection of the greenhouse. Carry out soil disinfection.
• Use the water temperature for irrigation 24-25 degrees, do this in the morning. Dead plants should be dug up together with the soil and burned. Pour the remaining well with copper sulfate, use the solution: for 10 liters of water, add 2 tablespoons of copper sulfate.

Diseases of cucumbers in greenhouses are complemented by this disease. It appears when watering cucumbers cold water rain method, with high humidity and frequent temperature changes day and night.​

​10 liters warm water (25*)​

Wood ash and prevention

Oily spots, usually green in color, begin to appear on the sheets. Then they increase during

After expiration, stir and strain.

VseoTeplicah.ru

Diseases of cucumbers in the greenhouse causes and methods of treatment

​http://youtu.be/Sg7QHwfw9pI​

​Set useful substances contained in the fruits of cucumbers: fiber, vitamins B and C, beneficial enzymes (including those such as tartronic acid), trace elements. Potassium and magnesium, iodine, calcium and phosphorus - this is an incomplete list of what simple greens contain. And although 95% of the cucumber consists of water, we must not forget that it is alive. structured water, which, moreover, is an excellent natural cleanser of the body from toxins and toxins. This vegetable is included in the menu designed for patients with hypertension, arthritis, gastrointestinal tract and cardiovascular diseases. The benefits of cucumber in diets for weight loss and when used as cosmetic product no longer needs advertising.

melon aphid

Remove fruits from cucumbers and spray.

Take 10 liters of warm water;

As we see cucumber diseases in a greenhouse, as a rule, they arise from a sharp temperature drop. Therefore, perform the manufacture of the structure of the room correctly (see Constructions of greenhouses for cucumbers and growing stages), do not allow gaps and uneven joining of elements.

This is also a disease of cucumbers in a greenhouse, which manifests itself in the form of gray spots of the mucous structure. This is especially noticeable in the leaf axils of the branches. The spread of the disease occurs with a decrease in night temperature, the use of cold water for irrigation, thick planting and poor ventilation of the greenhouse.

It can also occur with a draft. All these factors lead to the weakening of plants. With poor disinfection of the roof and soil, pathogens remain.

• 1 liter liquid mullein
• ​from 8 to 10 days​
• After that, spraying can be carried out.
• Combat measures. Weeding and destroying all weeds in the area, this disease can only be transferred from weeds.
• Planting tomatoes and other heat-loving crops in a greenhouse, greenhouse is a profitable business, even if the greenhouse is small, designed for only one family. One of the main difficulties of growing cucumbers in a greenhouse is their susceptibility to various diseases, as well as pests that will not miss the opportunity to feast on the succulent plant and / or its fruits. In order to prevent this, you should know the "enemy" in person. So, the list of the main diseases of cucumbers in the greenhouse:
• To get a full-fledged crop in a greenhouse, you need to know some agricultural practices for growing cucumbers, as well as methods and recommendations on how to process the greenhouse and plantings. Most the best time to prepare for the spring harvest - autumn. autumn work in the greenhouse begins with the removal of the remaining plantings. After removing all dried parts of plants and weeds, it is necessary to start preparing the soil.

For the same purpose, the Strela preparation can be used in the greenhouse. Dilute 50 grams of powder in 10 liters of water. The volume of the mixture is enough for 80 square meters. In addition to the destruction of pests, the drug will also give foliar top dressing to plants. A spoonful of urea and a spoonful of liquid mullein are added; Growing cucumbers in a greenhouse, diseases can in many cases be prevented by disinfecting the premises before planting.

With a dense planting of plants, a very large number of male flowers appear. In one leaf there can be up to 15 barren flowers. Which quickly wither and affect healthy stems.

The manifestation of the disease occurs in the form of the appearance of small brown sores on the plant and, at the same time, fluid is released. These sores can cover the entire fruit, then it is not suitable for consumption. The disease can destroy the entire crop in 6-8 days.

• 1 spoon of urea.
• . The plant becomes as if burned, its leaves turn brown.
• Treatment with a solution of karbofos also gives a positive effect. 2 tablespoons of karbofos are added to warm water (30 *). This solution should be sprayed with the air inside the greenhouse, paths, roof, ground and a little the plants themselves.
• It should be sprayed with infusion of red pepper, use only fresh for manufacturing: you need to cut

Fusarium;

From downy mildew, spraying with Topaz will help. 1 ampoule is enough for 10 liters of water. In the greenhouse, you can also use "Oksihom". Take 2 tablets per 10 liters. The temperature of the solution should reach 23 degrees. After the treatment, the building is ventilated, but care must be taken that the temperature in it is not less than 20 degrees. At night, the bushes cover.

The solution is stirred, filtered;

Have a good harvest.

greenhouse whitefly

Mix the solution thoroughly

Then there is a rapid drying, for this it is enough

Processing should be carried out in good sunny weather with closed doors and vents in the greenhouse. The air becomes quite suffocating, the aphids die. If you want to use karbofos for treating plants, you should add 1 tablespoon of the drug to 10 liters of warm water.

30 gr. fresh capsicum

ordinary mosaic;

Powdery mildew downy

The soil in a greenhouse intended for growing cucumber crops should have the following qualities: high fertility, good both throughput and absorption capacity, the reaction is close to neutral. If necessary, the top layer of soil (5 cm) in the greenhouse is removed, it is in this layer that contains the largest number of bacteria and the main diseases of cucumbers. After that, the soil is dug up to a depth of 30 cm. The next stage of soil preparation in the greenhouse consists of soil disinfection, while it must be treated with a solution of 7% copper sulfate. A month after the soil was treated with copper sulphate, it is possible to lay the prepared soil in a greenhouse or greenhouse. If the area of ​​\u200b\u200bthe greenhouse or greenhouse is insignificant, you can simply spill the soil with boiling water, but this is recommended to be done in the spring, before planting.

Fertilizing with mineral elements and fermented grass has a good effect on the fruiting and development of bushes. But when making mineral dressings, the composition of the soil should be taken into account.

After that, you can spray the leaves in the morning in warm weather;

On the most different stages development, vegetables are susceptible to dangerous diseases. As a result of the defeat, cucumbers turn yellow, spots appear on the leaves of cucumbers, plants weaken and even die. Control measures: Do not plant too densely. At in large numbers empty flowers, it should be removed, and the vacated places should be sprinkled with charcoal or wood ash. Control measures: Spray all plants in warm weather.

2-3 days When spraying, the lower part of the plant should be treated more carefully. Leave the room for an hour and then loosen the soil to a depth of 2 cm. When processing, do not damage the upper roots. Add tobacco dust 200 gr.

olive spotting;

To get a good harvest, you need to take care of the quality of the soil, such a mixture is considered the best: sod forest soil, peat, humus with the addition of field soil. After the occurrence of brown olive blotch, plants and fruits are treated with "Fundazol". For 10 liters of water, 30 grams of the product is taken. Spraying in this case must be carried out from a sprayer, and not from a watering can. The treatment interval is 5 days, spraying is carried out 2 times. After carrying out the work, the plants are dried by opening the windows in the greenhouse on one side. Spraying is carried out on each side of the bush. This disease of cucumbers appears with a sharp decrease in soil temperature and when watering at cold temperatures. In the event that soil is used in which pumpkin crops have already been grown, the risk of disease increases. Root rot can also appear if the planting was carried out incorrectly. If it is not clear why the leaves of cucumbers turn yellow, then you should pay attention to whether there are premature wilting and cracks on the lower part of the stem. If these signs are found, then this infection is possible with root rot.

Do not water when a disease is detected, but immediately check all plants. When feeding and watering, do not direct water to the plants themselves.

powdery mildew

At the first manifestations of the disease, you should stop watering the plants for 6 days, on warm days, ventilate the greenhouse. To do this, you must fully open all doors and windows, and if there is a film on the beds, remove it. When the temperature is cool, everything should be closed, this is done to raise the temperature in the greenhouse to 25 * in the daytime and up to 23 * at night.

Leaf processing should be carried out both in the lower and upper parts.

. People call this phenomenon "sour rain". But this is all speculation, the disease begins to develop with a sharp change in weather conditions, for example, a temperature drop, +28 during the day, and +12 at night.

There are also preparations such as Intavir and Strela, which also contain nutrients, that is, as a result of processing, the plants are also fed with the necessary elements. Such preparations are harmless and environmentally friendly (for more details, see How to choose the right fertilizer for cucumbers). Dilute in 10 liters of hot water 60 *.

• Mildew: powdery and downy mildew;
• When gray rot appears, all plants affected by the fungus should be sprayed with bacterial agents of the “Barrier” or “Barrier” type. They are absolutely safe for humans.
• After the appearance of powdery mildew, finely ground gray pollination can be carried out. It is placed in a bag made of three-layer gauze. And dusting should be done at an air temperature of 25 degrees in sunny time. It is important to close all doors and vents in the greenhouse during processing.
• To prevent the disease, you must strictly follow the rules for planting seedlings. You should not spud the stems too high.
• The following mixture helps with illness:

Diseases of greenhouse cucumbers can also be root rot. They spread extremely quickly on soil where cucumbers have already grown. The disease can also manifest itself when watering with cold water and a significant decrease in soil temperature.

Many pollinate damaged plants with sulfur, only fine grinding is used. Sulfur should be placed in a bag of gauze, which is made in three layers. Pollination is carried out in warm weather during the daytime.

The disease can begin when watering with cold water, or it will rain quite coldly. The formation of condensate on the greenhouse film also contributes to the development. From this, the cucumbers in the greenhouse can constantly be in a wet state, and when the temperature in the greenhouse drops to 12 degrees, the development of the disease can be expected. This disease damages tomatoes and cucumbers, sucks the juice from the leaves. In the course of the disease, white sugary discharge occurs, on which soot fungi form, while the leaves turn black and they dry out. Insist during the day.

Rot: gray, root, white; Such a mixture, with the addition of potassium sulfate, superphosphate, ammonium nitrate, is the most suitable for the effective cultivation of cucumbers. It is better to spray the earth and plants with closed windows and doors of the building. The weather outside should be sunny. As a rule, all store products are diluted in a combination of 1 tablespoon per 10 liters of water.

Before planting, soil treatment should be carried out. First, the top layer of the earth is removed - 5 centimeters, it contains a huge amount of pathogenic bacteria

If the disease has been detected, then the soil is raked from the stem to the very roots. And they are treated with a solution of copper sulfate, polycarbacin or copper oxychloride. Plants that have died from the disease should be dug up and burned. The soil from them is treated with a solution of copper sulfate.

1 cup wood ash

Brown spot (olive)

This disease often arises from improper planting of seedlings, when deepening or additional hilling is carried out.

The temperature should be between 23* and 28*. In the greenhouse during processing, it is necessary to close the doors and windows. On the open ground, after processing, the plants are covered with a film for 2 hours.

Control measures:

After that, stir and strain the infusion. Anthracnose and some others.

root rot

Disinfection of the greenhouse structure itself is carried out using a solution of copper sulphate of high concentration, which needs to be treated with a greenhouse (wooden surfaces). Metal parts of structures are painted oil paint. All equipment for working with plants in the greenhouse must be disinfected. BUT proper care behind plants planted in a greenhouse will ensure a good harvest and job satisfaction.​

In the process of spraying plants, it is better to carefully spray their lower part. Then, after an hour has passed, it is necessary to loosen the ground to a depth of 2 cm. But it is important not to touch the roots.

After the appearance of root rot, the following folk remedy will help:

• Gardeners are often faced with the fact that the ovaries of cucumbers turn yellow or even rot. The reason for this may be such a disease of cucumbers as bacteriosis. It is promoted by high humidity soil or air. 1st teaspoon of copper sulfate
• Apply for processing and a solution of potassium permanganate, When you notice the first signs of the disease, you should immediately stop feeding and watering and do not do this for 7 days. After lowering the humidity in the greenhouse, spraying with drugs such as
• Control measures: Diseases of cucumbers in the greenhouse most often come from weeds, so they should be destroyed throughout the site. It is necessary to wrap all doors and vents in one gauze layer, install glue traps.
• After that, add one spoonful of liquid soap and 3 tablespoons of wood ash
• ​http://youtu.be/mx9iaUxbZ2E​
• Seedlings are planted in planting holes, which are disinfected with a solution of potassium permanganate. Most often, before planting, the soil is abundantly moistened and a lump of earth with a cucumber sprout is planted in the resulting “dirt”. It is necessary to carefully monitor the height of the soil near the root neck of plants; when seedlings are deepened, diseases may occur. Cucumbers in the greenhouse can also be planted in a seedless way, but this delays the appearance of the first greens.

Gray rot

Cucumber processing is necessary to eliminate various diseases and pests. It can also be carried out for preventive purposes. The reward will be a good harvest

0.5 liters of water is taken;

At low night temperatures, with poor ventilation and when watering with cold water, gray spots may appear on the leaves of cucumbers, in the axils of the leaves and on the stems. These are signs of gray rot. So that it does not form, it is necessary to prevent the thickening of plants, do not water them with cold water and often ventilate the room.

Mix thoroughly and sprinkle the resulting solution on the affected areas.

Signs of the manifestation of the disease:

1.5 grams are injected per 10 liters of water

• "Topaz"
• For this purpose, pieces of plywood are painted white and yellow rather, they serve as an attraction for insects. At the same time, plywood is lubricated with rosin with the addition of honey or castor oil, petroleum jelly.

Tablespoons are used. The consumption of the prepared drug is

White and root rot occurs due to improper plant care: sudden changes in temperature, improper watering, excessive moisture. In order to avoid the appearance of white and gray plaque, the death of roots and leaves and the loss of crops in the future, it is necessary not only to pre-treat (disinfect) the soil, but to reduce watering, thin out too dense plantings, warm up the air in the greenhouse at night. Watering should be carried out with water at least the temperature of the air, but not cold. Gray rot develops for the same reason as the two previous diseases, but to combat it, in addition to the above methods, wood ash treatment is also needed, which is simply sprinkled on the affected areas of the plants.

Proper care consists in regular watering, preferably in the evening, warm water. If cultivation takes place in winter time, watering is done in the morning, in clear sunny weather. In hot weather, it is necessary to water the plants every other day. It is important to regularly monitor the air permeability of the soil; when a crust forms, the soil is loosened, which prevents the occurrence of root rot diseases. Regular airing and plant nutrition is also included in the mandatory complex for the care of cucumbers. A novice gardener should not forget that this vegetable (like all other cultivated plants) loves delicate handling: watering into the hole, under the root and in no case sprinkling and spraying water. Before the first harvest, one watering every 5-7 days is enough, depending on the temperature conditions of the greenhouse. After the first ovaries have appeared, the number of waterings per week should be increased to 3-4. Dandelion leaves and roots will help from the whitefly in the greenhouse. They are infused in water for 2 hours. Then the infusion remains to be filtered and spraying can be carried out. The procedure is repeated every 7 days. For the same purpose, garlic cloves are taken, which are crushed and poured with water. Then they are insisted for a couple of days. The resulting mixture is also sprayed on the culture. A teaspoon of copper sulphate is added;

black leaf mold

This disease affects both leaves, and stems and fruits. First, large yellow spots appear, then they are replaced by gray ones. After that, black dots appear on the plant. In case of damage, spraying is necessary Bordeaux mixture. If it is not clear why the cucumbers turn yellow, then it is worth examining the fruits for signs of ascochitosis.

Cucumber leaves begin to wither before or after fruiting begins. This is especially noticeable in good weather, which comes after long cloudy days.

​.​ (one ampoule is diluted in a bucket of water 10 l) or carry out an oxychoma treatment (2 tablets are stirred into 10 l of water).

When they hit the surface, insects simply stick (you can read about other ways to get rid of ants and other insects in other sections). After that, the surface of the plywood is wiped and a new layer of the mixture is applied.

1-2 liters per 1m2

parnik-teplitsa.ru

Common diseases of cucumbers: descriptions and photos of diseases

Root rot can cause cucumber leaves to turn yellow.

3 tablespoons of chalk are added;

It affects all organs - petioles, fruits, leaves, mustaches, stems. A white coating forms on the tissues, after which they soften and rot. First, white and then black fruit bodies appear on the affected areas. They are called sclerotia. They are the cause of the infection. Sclerotia overwinter in the soil. When the air or ground is too damp, rot spreads. The affected areas should be sprinkled with fluff lime or charcoal.

If the ovaries of cucumbers turn yellow, then this is a bacteriosis

If fungal diseases occur in plants, it is better immediately

Gray spots on the leaves of cucumbers can be caused by a disease of cucumbers such as gray rot.

If you remove the soil a little from the stem, yellowing of the stem and the appearance of cracks immediately become noticeable at the very root.

Ascochitosis disease is why cucumbers turn yellow and why cucumber leaves turn yellow

A reliable means to combat this disease is

Sclerotinia or white rot

In this case, the temperature of the solution should be from 22 * ​​to 24 *. After work, the greenhouse should be thoroughly ventilated (see How to ventilate a greenhouse if it is not possible to always be nearby), but do not allow the temperature to drop below 23 * during the day and below 18 * at night. For additional preservation of the body at night, you can cover the plants with a film, this will insulate and maintain the desired temperature.

Spraying with clean water has proven itself to be excellent, washing the lower part of the leaf gives a particularly good effect, whiteflies accumulate especially here. After washing the leaves, loosen the soil by 2 cm or add the following components: sawdust, peat, or add humus with a layer of 2 cm.

Other fungal diseases of cucumbers in the open field: spotted burn, cladosporiosis

, Determine by the number of aphids. Spraying should be carried out within a week.

​http://youtu.be/myMHrpyuzDo​

Photo gallery of diseased cucumbers (click to enlarge):

udec.ru

Processing cucumbers in a greenhouse: general information, for which it is carried out, folk recipes, the use of purchased funds, processing rules, important nuances, video

Some little tricks will allow you to get a bigger crop of cucumbers.

After the appearance of aphids, you can use a solution of garlic. Take 200 grams of teeth and dilute with a liter of water. Next, you should insist on the composition for a week. The solution is then filtered and diluted with water. The presented mixture can be sprayed with cucumbers for prevention or for the purpose of control. Another way to exterminate aphids is to use 10 liters of water and a tablespoon of liquid soap, and a glass of ash. The mixture is infused for 24 hours and filtered, after which spraying can be carried out.

All components should be mixed.

Processing cucumbers (video)

Plants are most susceptible during the fruiting period. The cause of the formation of rot can also be temperature changes and thickened plantings. Be sure to alternate cultures. Sprinkle stems with signs of damage with lime. The affected parts must be cut out, partially hitting healthy tissues. With a strong spread of infection, it is better to remove sheets during hot hours - so the wounds dry out faster. Slices are sprinkled with crushed coal or wiped with a solution of copper sulphate. Provide regular ventilation. Watering is carried out in the evening with warm water. You can try feeding. Ten grams of urea, one gram of zinc sulfate and two grams of copper sulfate are used for ten liters of water.

• Spray with the bacterial preparation "Barrier" or "Barrier"
• Control measures:
• drug "Topaz"
• This is a disease of cucumbers in the greenhouse and in the open field. Manifested in the formation of plaque on the leaves white color. It spreads extremely quickly, and the leaves turn white (it seems like they were sprinkled with flour), after which they dry out, and the plant quickly dies.
• ​Caution: Never churn with fresh sawdust. With this application, they take calcium from the soil and deplete it. This product should be used when it has lain for one year.​

You can try the second option.

Deciding to start growing cucumbers, whether for yourself or for sale, you should remember a simple rule: it is easier to prevent than to deal with the consequences later. Having properly cultivated the soil for cucumbers in the greenhouse and following the rules of agricultural technology, even a novice gardener will get an excellent harvest of greens and will be ready for further garden exploits.

For example, an increase in the amount of carbon dioxide in the air, which is formed when manure decomposes in the soil. For this, a very simple technique is used: a barrel or bucket is placed in a greenhouse, half covered with fresh manure and topped up with water. With daily stirring, fermentation occurs, enriching the air with carbon dioxide.

• We also invite you to find out how to disinfect the soil in a greenhouse and why you need it.
• The mixture is applied with a brush from the stem to the roots. Among other things, infected areas can be powdered with chalk or charcoal, then dried.
• Anthracnose or spotted burn is characterized by light brown spots that have an irregular shape. As a result of the defeat, the fruits do not grow to the desired size, and in severe cases disappear.
• Moreover, they are harmless to people.

When planting a plant, only the nutritious part of the root should be deepened and the stem itself should not be covered. During the summer, you should not add earth to the stem of the plant, and do not spud. If you break this rule, the plant will die.

. One ampoule is bred for 8 liters. water room temperature. Then it is thoroughly mixed and poured into the sprayer, a fine wash (mesh) is applied.

The use of purchased funds

You should not plant cucumbers on the same plot of soil, then a large number of pathogens of this disease accumulate at the sowing site. Their rapid spread occurs as a result of a decrease in temperature and when watering with cold water. The disease can also spread from weeds and flowers. Cucumber diseases in a greenhouse can be overtaken by downy mildew. It's become like an epidemic in last years. A plant can get sick at any stage of development.

• Make a solution of soap and ash:
• After the end of the fermentation process, this solution can be used as a liquid fertilizer, which also increases the yield. Plants of this species do not develop well in soil with a high concentration of nutrients. Foliar top dressing significantly increases the yield of cucumbers, a fertilizer solution is prepared at the rate of 100 g per 10 liters of water.

Cucumber processing is necessary to eliminate various diseases and pests. It can also be carried out for preventive purposes. As a means, you can use purchased drugs or solutions made independently.

From the whitefly in the greenhouse, dandelion leaves and roots will help. They are infused in water for 2 hours. Then the infusion remains to be filtered and spraying can be carried out

The next fungal disease of cucumbers in the open field is olive blotch or cladosporiosis. Initially, an olive coating appears on the plant, then the tissues are depleted and crumble. Then spots appear on the fruits. You can look at the photo of cucumber diseases in order to better recognize cladosporiosis.

​This fungal disease cucumbers in a greenhouse, all organs that are located above the ground can be affected. The onset is accompanied by the formation of small brown spots on the leaves of plants, which are oval and round in shape.

When the disease manifests itself, it is necessary to prepare a medicine: in 0.5 liters of water, add 1 teaspoon of copper sulphate, or apply copper oxychloride, three tablespoons of honey, or wood ash. Mix all this thoroughly.

Processing rules

Spraying should be carried out at the first manifestations of the disease, but it is better to treat before flowering, this will be a prevention that gives a good result. The first spraying can be carried out when 7-10 normal leaves appear.

It infects cucumber seedlings in a greenhouse. The infection persists for a long time, about 6-7 years.

• in 10 liters hot water stir 2 cups of ash,
• In a closed greenhouse, many diseases can develop. This can be caused by planting some crops in a certain place for a long time, and improper disinfection of the premises. We want to talk about some diseases of cucumbers grown in a greenhouse. There is a lot of printed text and videos on the Internet on this topic, we have chosen the most common diseases and want to offer proven ways to treat them.​
• Fermented herbal infusions and special mineral fertilizers intended for pumpkin culture have a good effect on the development and fruiting of plants.

0#1Anatoly09.10.2015 13:49I am a beginner gardener! I made a greenhouse and planted cucumbers, tomatoes, zucchini there! I regularly watered all the plants, but only cucumbers and zucchini grew and gave a good harvest, but something didn’t work out with the tomato! Now I understand - the Tomato was struck by phytophthora due to the high humidity in the greenhouse! At first I didn’t think that she was so dangerous, until she laid aside the larvae and the leaves, one by one, began to turn yellow and fall off, the neighbor immediately realized what kind of nastiness it was and told me to spray the greenhouse with an infusion of dandelion leaves and roots for a week! The remedy really works! You need to take 1 liter of whey (it is also sold in stores), dilute it with 1 liter of warm water and spray the leaves and lashes with this solution. You can use this tool to prevent powdery mildew.

We fight pests and diseases of cucumbers (video)

Purchased drugs are often used to control pests.

Spring has come, it's time to plant gardens in order to enjoy fresh herbs and vegetables in summer and autumn. Some have even begun to grow the most unpretentious plants in greenhouses or at home on a window or balcony.

Today we will talk about cucumbers and how to protect them from all sorts of pests and phyto-diseases. We are for it healthy lifestyle life and wholesome food, so we will not offer chemical compounds for processing cucumbers. Even if they are effective, and you can make good money on their advertising, but health is more expensive.

Cucumber treatment

1. Only ascended cucumbers, on which there are no flowers or ovaries yet, already require processing. We suggest you spray them every ten days with a composition of natural ingredients. In a bucket of water, dilute 20 grams of laundry soap, 1 liter of milk and 30 drops of iodine. Prevention is always better than cure.
2. It happens that cucumbers have just begun to appear, green, beautiful, crispy, and the tops are already turning yellow. There is a way out of the situation. Soak 300 grams of bread in a bucket of water, add half a bubble of iodine, treat the plants with this mixture. You can do this treatment every two weeks.
   
3. For those who live in the village, keep cows, or can easily get natural dairy products, it will not be difficult to make a solution for processing vegetables from whey. In a bucket of water, dilute 2 liters of whey and 150 grams of sugar. After treatment with such a solution, cucumbers will produce more fruits.
   
4. And for city dwellers, a recipe for a solution of onion peel is suitable. It is inexpensive and easy to use. Boil half a kilogram of husk in 5 liters of water. Leave it to stand overnight. Then dilute with water in a ratio of 1: 4. It is recommended not only to spray the solution, but also to water the cucumbers.
   
5. If cucumbers begin to wither right on the plant, treat them with a solution of whey without sugar in a ratio of 1: 5.
   
6. Cucumber processing important. But do not forget about regular watering. Especially if you live in a too warm climate or have not had natural precipitation for a long time. While the cucumbers are just emerging, water them every other day. Later, maybe once every three days.
   

Last time in the Smart Garden section, we told you how to grow cucumber seedlings at home. But after planting seedlings, cucumber weekdays begin, when diseases and pests attack our lovingly nurtured plants. Today our conversation is about how to protect cucumbers from diseases and get a high yield. There may be several reasons why cucumber leaves turn yellow.

1. Too little, too much or wrong frequency of watering. Insufficiently fertilized soil. Lack of fertilizing.

As a result, plants weaken, immunity and resistance to various kinds of fungi and pests decrease. There are effective folk recipes for processing cucumber tops that prevent yellowing.

Recipes for processing cucumbers and protecting against diseases

1. After the emergence of the culture and the appearance of 3-4 leaves, you can start processing with the following composition: 30 drops of iodine per bucket of clean water, a liter of milk and 20-30 grams of soap. Such spraying is recommended to be done every 10 days.2.

Soak the roll in a bucket of water for 12 hours (you can do it in the evening), knead the bread thoroughly, add the contents of a small vial of iodine. Pour the resulting solution into glass bottles, cork and store in a basement or other cool place.

Once every two weeks, treat cucumbers with a solution of this mixture at a concentration of 1 liter of the composition per bucket of water. With regular spraying, the tops will remain green until autumn.3. For 5 liters of water, take a liter of whey.

Treat cucumber leaves with a solution from all sides.4. In order for the ovary to reappear on cucumbers and peppers, you need to pour 2 liters of whey into a bucket of water and dissolve 150 grams of sugar.5.

Onion husk (can volume 0.7 l) pour 10 liters of water, boil for 1 minute, cover and let it brew for 12-15 hours. After the liquid, strain, squeeze the pomace, let it settle properly.

Pour 2 liters of infusion into 8 liters of water and treat the plants efficiently and abundantly from all sides, spray and pour the soil with a solution. Please note that when watering, it is advisable not to spray drops on the tops of cucumbers, as in the hot sun this can lead to leaf burns. At least once a week, you should loosen the pressed earth under the plants.

Watering with very cold water is undesirable. Mila Nabogova, especially for Smart Tips Smart tips wish you a great harvest! And if a lot of cucumbers were born, use our recipes for blanks.

Diseases of cucumbers in a greenhouse - how to prevent and how to treat

26/11/2014author Natalia | no comments The main sources of any cucumber disease in a greenhouse can be seeds, soil, film, greenhouse structures. It is impossible to provide full protection of plants without preventive measures, complex application of biological and chemical means of protection. In this article, we will get acquainted with biological products that will protect our cucumbers in the greenhouse from diseases, the rules for tillage, seeds, greenhouses to protect plants from diseases.

Greenhouse processing after harvest

Plant health and prevention from any disease of cucumbers in the greenhouse in the next season must be taken care of in advance - when plants are eliminated in the previous turnover. preparations, insecticides (for example, Bayleton + Farmayod-3 + Aktellik) or use “Climate” or “Fas” checkers for disinfection at the rate of 1 checker per 10-20 m3 of greenhouse. Are they thrown out in any case? Liquidation treatment is necessary to destroy the hotbed of diseases, pests, which in the next turn or season will find a way to "fly" into the greenhouses for new plantings. After removing old plants, it is necessary to carefully clean the greenhouse from weeds, plant debris and process structures and perennial film disinfectant Farmayod-3 (1 00-200 ml per 10 liters of water). Processing of semi-dried cucumber plants, disinfection of structures, cleaning of plant residues will save significant funds that can be spent on treating plants in the next season.

Preparation of cucumber seeds for sowing seedlings

Very often, untreated seeds are the source of infections that spread rapidly in the soil. The consequences of the development of some seed infections can manifest themselves in the process of growth and development of cucumbers: withering of plants, spots on leaves, fruits, general loss of yield. In creating a barrier and counteracting the development of pathogens, seed treatment of cucumbers with biological preparations Alirin-B + Gamair shows high efficiency (Table 5). + 5 tablets per 1 liter of water).

Growing seedlings

healthy, strong seedling- a very important stage for the formation of a good harvest of cucumbers. Since pathogens of plants are present in any substrate, in order to create conditions for normal starting development, before sowing in a seedling pot with a volume of 300-800 ml next to the seed (2-3 cm), it is necessary to add 1 tablet of Gliocladin - biofungicide based on Trichoderma fungus. Simultaneously with the growth of the root, the “cobwebs” of the mycelium of the fungus will begin to grow, which will gradually fill the entire volume of the seedling pot and displace pathogens. Approximately 5-7 days will pass after this - water the seedlings with a solution of Alirin-B + Gamair preparations (2 tablets + 2 tablets per 10 liters of water) at the rate of 30-40 ml of the finished solution per 1 seedling pot. Use of a complex of biological products at the growing stage seedlings is a reliable means of preventing and treating cucumber diseases, primarily root rot.

Soil preparation before planting seedlings

The soil in the greenhouse is capable of accumulating a colossal number of pathogens. Soil disinfection is perhaps the most difficult, expensive step in the prevention and protection of future crops, but soil preparation measures pay off by reducing pesticide treatments during the turnover and by increasing overall yield. To disinfect the soil before planting, you can irrigate the soil with a solution of the following preparations: Pharmaiod-3 (100 ml per 10 l of water) or 5-10% hydrogen peroxide (0.5-1 l per 10 l of water).

The consumption of the working solution of preparations is 1-2 l / m2. After disinfection of the soil, it is necessary to fill the space free from pathogens with useful soil microflora. 1-3 days before planting seedlings, Trichocin, SP is applied at the rate of 30 g per 500 m2. The drug is applied by spraying or watering the soil (it is possible with the help of drip irrigation), followed by soil treatment manual cultivator or a walk-behind tractor (if the greenhouse is large) to a depth of 15-20 cm. The drug is quickly distributed through the capillaries throughout the beds.

Prevention of diseases of cucumbers and their protection during the growing season

Preventive measures to protect the cucumber from the main fungal, bacterial diseases begin from the moment the seedlings are planted. Planting seedlings in a permanent place is the strongest stress for plants caused by a sharp change in conditions. Any stress leads to a decrease in the plants' own immunity - at this moment they are most vulnerable, susceptible to infection by pathogens. To prevent infection, increase immunity, it is recommended to water the plants during or after planting with a mixture of Alirin-B + Gamair preparations (Table 2 + 2 table per 10 l of water) at a flow rate of a working solution of 10 l per 10 m2. When drip irrigation, the norms of Alirin-B and Gamair preparations are 20 tablets each. per 100 m2. The effectiveness of biological products will increase if the immunomodulator Ecogel, BP (100 ml per 100 m2) or Narcissus N (100-120 ml per 100 m2) is added to them. After 25-30 days after planting, it is necessary to repeat the application of Ecogel or Narcissus biological products N, increasing the rate of Alirin-B and Gamair to 30 tab. per 100 m2. Subsequent application after 25-30 days is carried out with the consumption of biological products 30-40 tab. per 100 m2. Such a sequence of application will help maintain high plant immunity, create a constant presence of a beneficial bacterial culture in the root zone.

Biological preparations for the prevention, treatment of diseases of cucumbers, their properties

Alirin-B (tablets) is a long-acting bacterial preparation, a biological fungicide. It is effective against root rot, wilting of various nature, ascochitosis, anthracnose, powdery mildew, and other fungal diseases of cucumbers. Gamair (tablets) is a long-acting bacterial preparation, a biological bactericide.

Effective against bacterial rot, some types of phytopathogenic fungi. Gliocladin (tablets) is a microbiological fungicide against root rot pathogens. It is highly effective against Fusarium, which develop well in soils rich in organic matter. Trichocin, SP (Trichodermin) (powder) is a microbiological fungicide based on a soil antagonist fungus of the Trichoderma genus.

The drug prevents the development and spread of root rot pathogens. All biological products, after dissolving in water, can be applied through systems drip irrigation, any types of sprayers. In the working solution, biological products are compatible with mineral fertilizers for foliar top dressing, growth regulators, humates, insecticides. The shelf life of biological products is 2-3 years.

The main diseases of cucumbers

Root rot - prevention and treatment

The complexity of the fight against cucumber root rot is due to the fact that it is usually a mixed (fungal and bacterial) infection. Preparations for treatment should have fungicidal and bactericidal activity. When plants wither from root rot, it is necessary to use double doses of Alirin-B and Gamair preparations (40 tablets per 100 m2 of each biological preparation). In case of strong wilting, it is necessary to irrigate under the root with chemical pesticides according to the following scheme: Previkur (15-20 ml per 10 l of water), after 3-5 days, irrigate with Fitolavin, VRK (15-20 ml per 10 l of water). After application of the Fitolavin preparation, both pathogens and beneficial microflora are destroyed, therefore it is imperative to irrigate with Alirin-B and Gamair biological products (20 tablets per 100 m2 of each biological product).

Prevention of ascochitosis and gray rot of cucumber

Preventive measures must be started even before the first signs of the disease appear: spraying on the leaf with a mixture of biopreparations Alirin-B + Gamair (10-20 tablets + 10-20 tablets per 10 liters of water). The causative agent of ascochitosis primarily affects weakened plants, therefore, for prevention, it is effective to spray plants with growth regulators Epin (2 ml per 10 l of water), Ecogel (100 ml per 10 l of water), starting from growing seedlings. If there are obvious signs of diseases, in addition to the use of biological products, it is effective to spray with Strobi preparations (15-20 ml per 10 l of water), or Quadris (5 ml per 10 l of water). To combat gray rot, the affected stems are smeared with a mixture of Rovral and chalk (dilute to the consistency of sour cream) in a ratio of 1:2.

Prevention, treatment of powdery and downy mildew

The use of biological products before the first signs of diseases appear can delay the onset of plant damage as much as possible. Spraying plants with a mixture of biological products Alirin-B + Gamair (10-20 tablets + 10-20 tablets per 10 l of water) + 10 g per 10 l of urea + Ecogel, BP (100 ml per 10 liters of water) or Narcissus B (50 ml per 10 liters of water) is not only a good prophylactic, but can also be used to treat the disease at the first signs. Of the chemicals against powdery mildew, Quadris treatments are effective ( 5 g per 10 liters of water). Topaz (5 g per 10 l of water), Thiovit Jet (20-30 g per 10 l of water). Against downy mildew (peronosporosis) in the summer-autumn period, you can use Quadris (5 g per 10 l of water), Ordan (30 g per 10 l of water), Previkur Energy (20 g per 10 l of water). The modern system of plant protection in greenhouses cannot be imagined without the use of biological products: their biological effectiveness when used according to the recommended technology is high.

The correct use of drugs can be an alternative to the use of chemical protective equipment. In favor of the use of biological products in the plant protection system, such important qualities as high efficiency in the absence of the possibility of "addiction" to the action of biological products in pathogens of cucumbers can be attributed.

You may be interested in the following articles:

The scheme of processing cucumbers from diseases and pests

Can I grow cucumbers on my site without the use of chemicals? Can. And you can stay without a crop.

Here's how lucky. The photo shows a picture of how in our area that year, almost everyone had cucumbers "burnt" in their gardens in a day or two.

Friends, owners of household plots, who grew cucumbers for sale and decided to do without chemistry this time, the same story happened - they were left without cucumbers. In any case, the owner should take up the issue of using chemical treatment of cucumbers with insecticides and fungicides personal plot or dachas. Cucumbers, like tomatoes, are very often exposed to various pests and diseases. The following are plant protection specialists' recommendations for processing cucumbers.

The timing and phenophase of plant development may differ for different regions of our vast Motherland. Processing times are given for the Northern zone Krasnodar Territory and south of the Rostov region.

So make corrections. So, how (with what preparations) and in what time frame to spray cucumbers grown in open ground and greenhouses: March - seedling preparation: dressing seeds with manganese before sowing April - planting seedlings: destruction of the bear before sowing cucumbers - Medvetoks or other drugs to combat this pest May - before flowering: top dressing with fresh manure. After flowering: spraying Abiga Peak or Ridomil, or Oksikhom + Actellik - against pests June - growth of cucumber fruits, ripening: Abiga Peak, Ridomil, Oxyhom + Fitoverm July - fruit growth, ripening: Abiga Peak - 20 days before harvest This is for the first (spring) planting of cucumbers. For repeated plantings in July-August, the treatment is carried out in accordance with the phenophase of plant development.

Measures for the prevention of various diseases in the cultivation of cucumbers

• crop rotation

Diseases and pests of cucumbers

Diseases of cucumbers

The most common cucumber diseases are downy mildew (peronosporosis), powdery mildew, root rot (fusarium), brown (olive) spot, gray rot, anthracnose, ascochitosis, bacteriosis, etc. downy mildew- the most common and dangerous disease cucumbers.

It can appear at any stage of plant development, but mainly appears during the fruiting period, around the beginning of August. With a disease of false powdery mildew multifaceted green oily spots appear on the leaves of plants.

These spots increase in size within 8-10 days, then the leaves turn brown, as if the plant was burned, and dry out after 2-3 days. The cause of the disease is the presence of fungal pathogens in the soil, which develop intensively when plants are watered with cold water, as well as when high humidity air in the greenhouse and the presence of water condensate on the film.

Most often, this manifests itself with large differences in air temperature day and night (24-25 ° C during the day, and 10-14 ° C at night) and with insufficient ventilation of the building. At the first signs of the disease, watering and fertilizing are immediately stopped and they are not carried out for 6-7 days.

Plants are sprayed with a solution of polycarbacin or copper oxychloride. At the same time, 1 tablespoon of polycarbacin or 40 g of copper oxychloride is taken per 10 liters of water. Processing is carried out with a solution having a temperature of 24-25 ° C.

Good results are obtained by spraying cucumbers with a solution of whey (3 liters of whey and 1 teaspoon of copper sulphate are taken for 7 liters of water). You can spray plants with pure whey.

After the treatment, it is necessary to ventilate the greenhouse and within 6-7 days try not to allow the temperature in it to drop below 20-25 ° C during the day, and 18-22 ° C at night. To do this, it is recommended to install a second film shelter in the greenhouse at night, additionally cover the plants with film, burlap or other materials in order to ensure the specified air temperature in the building.

After harvesting, the greenhouse, the soil in the beds and the plants must be treated with a solution of copper sulphate (3 tablespoons of copper sulphate are taken for 10 liters of water). After a day, all plants with roots must be removed from the beds and burned.

To prevent the disease, it is not recommended to grow cucumbers in the beds where pumpkin crops grew in the previous year - cucumbers, zucchini, squash, etc. At the stage of growing cucumber seedlings and at the very beginning of fruiting, preventive spraying of plants can be carried out to prevent downy mildew.

The most effective remedy for this is Rizoplan (2 tablespoons of the drug are taken for 10 liters of water). powdery mildew also a very common disease of cucumbers.

With powdery mildew disease, rounded white spots appear on the leaves of plants, which later increase in size and merge, and the leaves are covered with a white powdery coating. Then they become light or yellow-green, shrivel, darken and dry.

As a result, the plant dies. Powdery mildew most often occurs when growing cucumbers in the same place where the infection of this disease accumulates.

When the air temperature drops and the plants are watered with cold water, the fungi that are the source of the disease multiply rapidly and the disease spreads throughout the garden. When the first signs of the disease appear, it is necessary to immediately spray the plants with a solution of mullein or potassium permanganate.

For 10 liters of water, take 1 liter of mullein and 1 tablespoon of urea or 1.5-2 g of potassium permanganate. The solution is thoroughly mixed, filtered and sprayed with leaves from both the upper and lower sides, as well as plant stems.

Processing is carried out 2-3 times per season early in the morning or in warm weather in the evening. Spraying cucumbers with a solution of sulfaride paste also gives good results. For 10 liters of water take 2 tablespoons of the drug.

Spray plants 2 times per season with an interval of 6-7 days. c Another way to control powdery mildew is to dust the plants with ground sulfur. To do this, finely ground sulfur is poured into a bag made of three-layer gauze, and plants are pollinated during the day in sunny weather at a temperature of 23-28 ° C.

At the same time, for 10 sq.m. garden beds consume 30 g of sulfur. When processing gray plants, doors, vents and transoms in the greenhouse are closed, and plants grown in shelters or in open ground are covered with foil for 2 hours after processing.

Many growers use folk way powdery mildew control. Collect and cut into a common container nettle, dandelion, plantain, coltsfoot, Ivan tea, wood lice (star), celandine. Then everything is mixed, take 5-6 d / of this mixture and pour two to three liters of hot water with a temperature of 60-70°C.

The mixture is thoroughly triturated, mixed and topped up with water to 10 liters. After 1-2 days, the solution is filtered, 1 tablespoon of urea or 1 g of potassium permanganate and 2 tablespoons of liquid soap are added to it. Plants are sprayed with the resulting solution 2 times per season with an interval of 6-7 days.

root rot cucumbers appear when watering with cold water and with a sharp decrease in soil temperature. The disease spreads especially quickly when using soil on which cucumbers or other cucurbits have already been grown.

Root rot also appears when seedlings are planted incorrectly - when plants are buried during planting or when they are heavily hilled. Signs of the disease are premature wilting of the leaves, yellowing and cracks on the lower part of the stem.

To prevent the disease, it is necessary to strictly follow the rules for planting seedlings and not cover the plant stem from the roots to the cotyledon leaves with soil, do not hill the plant stem too high. When a disease is detected, it is necessary to rake the soil from the stem to the very roots of the plant, make sure that it does not cover the diseased part of the stem, and also treat the stems with one of the following compositions.

For 1 liter of water, take 2 teaspoons or copper sulfate, or copper oxychloride, or polycarbacin and 6 tablespoons or chalk, or wood ash, or fluffy lime. Everything is thoroughly mixed. With this solution, using a brush, moisten the stems of diseased plants from the roots to a height of 12-15 cm.

Plant stems can also be powdered with wood ash, crushed charcoal or chalk, and then dried. When watering, you need to make sure that water does not fall on the stems of diseased plants, water only with warm water with a temperature of 24-25 ° C.

Dead plants are dug up along with the root and a clod of soil and burned. The soil is watered with a solution of copper sulfate (2 tablespoons of copper sulfate are taken for 10 liters of water).

Brown (olive) spotting appears on cucumbers when watering with cold water (moreover, plants, not soil), with increased air humidity in the greenhouse, with frequent drops in air temperature to 10-13 ° C, as well as with drafts in the greenhouse. Signs of the disease are brown sores with the release of fluid that appear on the fruits.

In the future, the sores cover the entire fruit and it becomes unusable. If appropriate measures are not taken, the plant dies 6-7 days after the disease.

At the first signs of the disease, it is necessary to stop watering and fertilizing for a period of 5-6 days, on warm days, ventilate the greenhouse, remove the frames from the greenhouse or the film from the shelter frame. On cool days, carefully close the doors, vents and transoms in the greenhouse, close the greenhouse with frames, and cover with foil.

It is advisable to additionally cover the structures in order to raise the air temperature in it - during the day up to 20-25°C, and at night up to 18-20°C. In addition, plants and fruits are sprayed with a one percent solution of Bordeaux mixture (100 g of copper sulfate and 10 g of lime are taken per 10 liters of water) or a solution of polycarbacin or copper oxychloride.

To prepare a solution for 10 liters of water, take 1 tablespoon of the drug and 2 tablespoons of liquid soap. Spraying is carried out in the morning in warm weather 2 times per season with an interval of 5-6 days. After spraying, the building is ventilated.

Gray rot appears on cucumbers at low night temperatures, when watering with cold water, poor ventilation of the structure and thickening of plants. Signs of the disease are slimy gray spots on the stems and leaves of plants, especially in the axils of the leaves.

When the plants are thickened, a large number of male flowers appear on them, which fade and rot in a few days, affecting the stems of the plants. To prevent gray rot, it is necessary to avoid watering cucumbers with cold water, ventilate buildings in a timely manner, and prevent thickening of plants.

If there are a large number of empty flowers on the plant, they must be removed after flowering, and the places damaged by rot should be sprinkled with wood ash or crushed charcoal. If there is gray rot on the plants, they are treated with a mixture of wood ash and copper sulfate.

For 1 cup of ash, take 1 teaspoon of copper sulphate, mix thoroughly and sprinkle on plant sites damaged by gray rot. If the disease progresses, the affected shoots and leaves are cut and burned.

The main pests of cucumbers are melon aphid, spider mite, greenhouse whitefly, sprout fly, etc. melon aphid is the most harmful for cucumbers and squash, it damages the shoots, flowers, ovaries and the underside of the leaves, causing them to wrinkle and twist.

The melon aphid has an oval shape, its length is 1.2-2.1 mm. At first, the aphid is yellowish, and then dark green. Aphids appear in the second half of summer.

It reproduces very quickly, a few days after the appearance it envelops the entire underside of the leaves, as well as flowers and ovaries. To combat melon aphids, it is necessary to destroy all weeds on the site, remove plant debris in a timely manner, * as aphids pass to cucumbers, mainly from weeds.

When aphids appear, the plants are sprayed with an infusion of red hot pepper and tobacco dust. For 10 liters of hot water with a temperature of 60 ° C, take 30 g of fresh chopped capsicum or 5-10 g of dry red pepper and 200 g of tobacco dust and insist this solution for a day.

Then the infusion is thoroughly mixed and filtered, 2 tablespoons of liquid soap and 2-3 tablespoons of wood ash are added to it. Plants are sprayed with the resulting composition, spending 1-2 liters per 1 m 2 of the garden area, depending on the number of aphids.

At the same time, the stems, the upper and, especially, the lower surface of the leaves are treated. Spraying is repeated after 6-7 days. To combat aphids, cucumbers can also be sprayed with a solution of wood ash. For 10 liters of water, take 1 glass of wood ash and 2 tablespoons of liquid soap.

Ash is poured hot water and insist for a day, then liquid soap is added, the infusion is filtered and the plants are sprayed with it in the same way as in the previous case. Processing is carried out in the evening in warm, calm weather.

An effective remedy against aphids is spraying cucumbers with a solution of karbofos. For 10 liters of warm water with a temperature of 30 ° C, take 1-2 tablespoons of karbofos. Plants are sprayed with a solution of low concentration, and only the frame and paths inside the structure, as well as film and soil on the beds, are sprayed with a solution of strong concentration; it is not recommended to process plants with them. Processing is done in the evening in sunny weather.

At the same time, doors, vents and transoms in the greenhouse must be closed. 1-2 hours after treatment, the soil on the beds is loosened to a depth of 1-2 cm, trying not to damage the roots of the plants.

In addition to these agents, spraying plants with an infusion of various insecticidal (insect-killing) plants is used to combat aphids: black henbane, creeping mustard, common dope, dandelion, potato and tomato tops, garlic, husks and onion heads. To do this, take for 10 liters of water: a) 1 kg of dry last year's leaves or 0.5 kg of fresh henbane leaves with the addition of roots and insist for 12-15 hours; b) 1-1.2 kg of dry mustard herb and infused for 24 hours; c) 1 kg of dry Datura plants are boiled in a small amount water, filter, add water up to 10 l; d) 0.4 kg of fresh dandelion leaves or 0.2-0.3 kg of crushed roots insist for 2 hours, add 1 teaspoon of pepper and mustard; e) 1 kg of green or 0.6-0.8 kg of dry potato tops, add 5-10 g of ground red pepper, infuse for 3-4 hours and use immediately after that; f) 0.5 kg of tomato stepchildren are passed through a meat grinder, poured with warm water at a temperature of 30-35 ° C, infused for 3 hours, filtered, add 1 teaspoon of ammonium nitrate; g) 1.5 cups of minced (washed in salt water and passed through a meat grinder) garlic and 5-10 g of ground red pepper are infused for 5-6 hours, filtered through gauze; h) 5 liters of onion peel are poured with hot water at a temperature of 70-80 ° C, 1 tablespoon of mustard is added, insisted for two days, filtered; i) 1 cup chopped (minced) onions onion, add 1 tablespoon of soda ash, insist for 2-3 hours, filter.

Before use, add 2 tablespoons of liquid soap to all infusions. spider mite damages cucumbers grown in greenhouses, greenhouses and shelters. It has an oval or oblong shape, its length is 0.3-0.4 mm.

Ticks settle on the underside of the leaves, braiding them with a thin cobweb. On damaged leaves, light dots first appear, and then the leaves become spotted and dry.

To combat the mite, the plants are sprayed with an infusion of various insecticidal plants or an infusion of red hot pepper and tobacco dust. Methods for using these agents are described above in relation to melon aphids.

Another pest of cucumbers and tomatoes is greenhouse whitefly, which sucks the juice from the leaves of plants. In addition, sooty mushrooms appear on the sticky sugary secretions of the whitefly. The leaves turn black and dry up.

To combat the whitefly, it is necessary to carry out timely cleaning of plant residues on the site, to destroy weeds. In addition, a mechanical method of their destruction can be recommended to combat whiteflies.

For this, glue traps are equipped and installed in the building - pieces of plywood painted with white or yellow paint and smeared with some kind of adhesive: petroleum jelly, rosin with honey or castor oil, etc. The white or yellow color of the trap attracts insects, they sit on them and glued on. After that, the plywood is wiped, and then smeared with adhesive again and reinstalled.

Spraying and washing the plants with clean water gives good results, especially washing the underside of the leaves, where whiteflies accumulate in large numbers. Immediately after washing off the pests, the soil is loosened to a depth of 1-2 cm and the soil of the beds is mulched with peat, sawdust, sand or humus with a layer of 1-2 cm.

Having made the decision to grow, it does not matter at all for yourself or for sale, it is important to remember that it is better to prevent problems from arising than to deal with the consequences later. Knowledge of the rules of agricultural technology and the proper processing of cucumbers from diseases will help even novice gardeners to get the desired harvest.

Iodine treatment

Processing cucumbers with iodine allows you to cope with the following problems without the use of chemicals:

Use of wood ash

It is a natural alkali, which has not only fertilizer functions, but is also capable of killing harmful microorganisms and. Ash is a great helper in the fight against different types spotting of cucumbers, which appear as a result of the multiplication of bacteria.

For prevention, it is recommended early stages For the development of microorganisms, sprinkle a little leaves of plants with a solution of ash. A similar solution and iodine for cucumbers will help slow down the development of powdery mildew, which leads to the appearance of spots and white bloom on the leaves. In addition, all this will avoid the intervention of chemicals.

To improve the adhesion of the drug, you can add laundry soap to the solution, 50 g of soap is enough for a bucket of water. top dressing increases the resistance of cucumbers to. In order to scare away and impede their movement, the soil is treated with ash or a mixture of this substance with tobacco dust.

Spraying with garlic

Infusion of garlic is effective not only against aphids, but also other pests.

A similar solution can be prepared in two recipes:

• Take cloves in a volume that fits in liter jar. Combine them with 0.5 l of purified vegetable oil and 30 ml of liquid soap. Garlic is pre-crushed thoroughly. The resulting composition is insisted for 24 hours, filtered after the expiration. For spraying, take 20 ml of the prepared solution and dilute them in 500 ml of water. Thoroughly mix and treat diseased plants. In order not to harm the plants, it is important to strictly observe the concentration.

Important! To get a good and high-quality harvest, even an unpretentious cucumber needs help. Do it with folk recipes or chemical elements- you decide.

• The second recipe consists of the same amount of garlic, 1 liter of water and 15 g of soap. Garlic is passed through a meat grinder, poured into a 2-liter jar, the rest of the container is poured with water. Then in closed store in a dark place for 12 days. After the expiration of time, filter and use as directed. Before use, the resulting composition is diluted with water, a small piece of soap is added. For the correct concentration, 50 ml of garlic infusion is diluted in a bucket of water. All thoroughly shake and spray the plants.

Such spraying can be carried out as many times as necessary.

Milk serum

When plants begin to hurt during the harvest period, chemistry cannot be applied. At this time, in addition to iodine, cucumbers are also treated with milk and products of its processing, for example, whey. It contains monoacid bacteria, which suppress the activity of pathogens of fungal diseases and saturate plants with useful substances.

The medicinal composition, which is formed on the leaves of plants in the form of a thin film, protects them from the ingress of fungal microorganisms. However, the disadvantage of this tool is the short duration of the effect, so you need to regularly treat the plants. Professionals recommend planning processing for July, since it is at this time that they are most vulnerable. Serum should not be used undiluted.

Before use, it must be diluted in the same amount with water at room temperature. Then the composition is heated to 25 ° C and cucumbers are sprayed. Additionally, you can add laundry soap, this will help improve the adhesion of the product to the leaves.

Fertilizing plants with mullein solution

With the defeat of powdery mildew, which manifests itself in the form of a grayish coating on the entire bush and gradually leads to its death. The first manifestations of the disease can be removed by processing with environmentally friendly fertilizer - mullein infusion.

It is prepared in several ways:

Take a certain amount of fresh and pour the same amount of water. They insist for a day, after the time has elapsed, they are re-diluted already in a ratio of 1:10. Stir thoroughly and water the aisles with the finished composition at the rate of 10 liters of fertilizer per 1 m2. Use slurry and combine it with water in a ratio of 1:4. Leave in a warm place for 7 days. Then add more water in the amount of 3 servings and feed.

Important! An additional benefit of manure is to obtain heat, which will be released from the overheating of manure. This will positively affect the growth of crops.

Iodine and Zelenka

Cucumbers used to be often treated with brilliant green and iodine. Useful qualities antiseptics are manifested due to the copper compound that is present in the composition. A solution based on iodine and brilliant green is prepared as follows: 10 ml of brilliant green is added to a bucket of water.

Even a novice gardener can grow cucumbers. However, this culture is quite demanding on the observance of agricultural technology and, despite resistance to most diseases, is prone to rapid defeat by them.

The first problems may arise even at the stage of growing seedlings. Therefore, experienced gardeners pre-prepare the seed and the ground. In addition to hardening and soaking, the seeds are treated with one of the disinfectants.

• Potassium permanganate. Seeds are kept in a bright purple saturated solution for 20-30 minutes, then washed and prepared for planting.
• Bacterial preparations - Baksis, Fitosporin and others. Cucumber seed is soaked in a solution for 1.5 hours, then dried.

All these tools destroy harmful fungi and bacteria from the surface of the seeds. This will help prevent many diseases.

The soil is pre-frozen, calcined in the oven or watered with disinfecting solutions:

• insecticides - "Aktara", "Thunder", "Iskra" (one month before sowing);
• fungicides - "Fitosporin", "Barrier", "Extrasol", etc.;
• pale manganese solution (2 weeks before planting).

But diseases can affect a plant at any stage - in a glass on a windowsill, in a greenhouse or in open ground.

Fungal diseases of cucumbers

Fungi are the largest and most common group of microorganisms that infect cucumbers. When infected with them, spraying with EM preparations (Fitosporin, Baikal), as well as compositions according to folk recipes, is effective:

• curdled milk (kefir), diluted in half with water, with the addition of 1 drop of iodine for each liter of solution;
• , diluted with water 1:1;
• a mixture of 5 components: 1 part each of water and sour milk with the addition of 2 g of dry potassium permanganate, 40 g of liquid soap, 50 g of soda;
• infusion of ash (1 cup of dry matter per bucket of water, stand for a day and filter before spraying).

For some varieties of the fungus, it is better to use individual methods of struggle.

• powdery mildew

Appears from excess moisture. A white coating forms on the leaves on the upper side, then they wrinkle and die. Seedlings stop growing, color and ovaries crumble.

Preventive treatments with sulfur-containing preparations (colloidal sulfur or Quadris) with an interval of 10 days are effective. A couple of weeks before harvesting the fruits, processing is stopped.

• downy mildew

The disease very quickly destroys cucumbers. There are no 100% effective control measures. The defeat looks like a white-purple coating on both sides of the sheet. The greens gradually turn brown, the plant dies. The development of the fungus contributes to high humidity.

For treatment and prevention, you will need copper preparations and fungicides - Ridomil Gold, Bravo, Strobe (they need to be watered or sprayed with cucumbers). A month before the ripening of the crop, processing is stopped.

• Various root rots

They are caused by fungi that live in the soil. Weak plants are more prone to damage. Diseases of this group arise from frequent hypothermia (at temperatures below 16 degrees). The disease proceeds as follows: first, thin roots die, then a plaque appears on the base of the stem, the leaves wither, then the bush at the root begins to rot.

First of all, the gardener needs to shed the soil with pale potassium permanganate, raise the temperature of the earth and pour a layer of fresh earth around the stems.

• anthracnose, ascochitosis and cladosporiosis

The symptoms of the diseases are similar - spots and holes appear on the leaf plates, the fruits are covered with brown sores. Gradually, the whole plant begins to wither and dies. Mushroom spores live on cucumber tops and can be carried by the wind.

For prevention and treatment, spraying with 1% solutions of copper-containing agents (Bordeaux mixture or copper oxychloride) is carried out every 7-10 days. A month before harvesting, processing must be stopped!

• white rot

The fungus is very dangerous, its defeat is manifested by the appearance of a white flaky coating with black specks throughout the plant. Then the affected areas become soft and slimy. The entire bush can die in 5 days.

The means of struggle are powerless - the dead plants are destroyed, and the land is treated with high temperatures or changed to a new one.

Viral diseases

Viruses are living organisms, most often spread through seeds or from one plant to another. different ways. Chemical preparations are powerless against viruses.

Preventive measures will be effective:

• fight against weeds and insects sucking plant juices;
• purchase of virus-resistant seed varieties;
• processing inventory with alcohol, potassium permanganate;
• lowering the temperature in the greenhouse if it reaches 30 degrees;
• treatment of dry seeds with high temperatures for 10 minutes (+ 50–70 degrees);
• destruction of diseased plants with roots, tillage with boiling water.

In addition, the gardener must observe crop rotation - do not plant cucumbers in one place for 2 years in a row.

• Mosaic common cucumber

It affects about 500 varieties of plants, including weeds. Lives in the roots of perennials, carried by insects that feed on their juice. In case of damage, the stem cracks at the base, the growth of the plant slows down, shapeless light spots appear and grow on the leaves, the leaf plates become smaller and wrinkle, the edges are wrapped downwards.

For prevention and in the initial stage, a 3% Farmiod solution will help (only during the growing season).

• white mosaic

The fruits become clumsy, with large white spots, the veins on the sheets are covered with stars, similar to a mosaic. In general, this type of virus is similar to the green mosaic.

• green mosaic

Plants are stunted, fruits and leaves are covered with a green mosaic grid. Transmitted from other plants during harvest or with water.

At the initial stage and for prevention purposes, spraying with 10% solutions of whey or skim milk will help, it is possible with the addition of iodine.

“Treating” seeds with high temperature from a green mosaic is not very effective - the virus dies only when heated to 90 degrees, which is dangerous for the seed.

• tobacco mosaic

The leaves are covered with a marble mosaic pattern, the affected fragments swell, then the entire leaf plates die off. The fruits become clumsy, the yield drops.

The parts of plants affected by the virus are cut off with a knife treated in alcohol or vitriol and destroyed.

Bacterial diseases

The most common infection on cucumber is bacteriosis. Another name is angular leaf spot. Outbreaks of the disease occur outdoors or in a greenhouse when high humidity is kept for a long time at a temperature of 18-24 ° C. At the same time, moisture is constantly present on the leaves.

The disease manifests itself by the appearance of angular spots on any part of the plant. The fruits are affected by ulcers, rot.

For prevention and treatment, preparations from hay sticks are used, during the growing season they are sprayed with a 0.7–1% solution of Bordeaux mixture, and the temperature is increased.

Cucumber pests

The attack of pests can cause tremendous damage to plantings in a short time. The gardener should carefully monitor the appearance of insects and not delay the treatment.

The most common pests found on cucumber beds:

1. . Signs of damage: the leaves begin to curl and wrinkle, clusters of insects can be seen on their reverse side. Gradually, from aphid excrement, a sooty fungus sits on the plant.
2. Whitefly. A whitish coating appears on the leaves in spots, later they turn yellow and dry. On the reverse side of the leaf, insects themselves hide in large numbers. If they are disturbed, they take off together.
3. Spider mite. Thin cobwebs appear on the leaves; upon closer inspection, you can also see small mites.

All these pests feed on the juices of the plant and carry diseases that are dangerous for cucumbers. Fighting methods:

After treatment with pesticides, it is necessary to wait the due date before harvesting. Poisons must be used strictly according to the instructions.

Since a healthy and strong plant is less susceptible to the influence of diseases and pests, it is extremely important to observe agricultural practices: you can not thicken the plantings, allow the soil to dry out excessively, flood or create a stuffy atmosphere in the greenhouse, damage the stems and leaves, fertilize excessively. A good precaution would be to purchase seeds only from a trusted manufacturer. Prevention and timely treatment will minimize all risks, and cucumbers will delight good harvest until autumn.