Whiteflies on tomatoes are signs of infection. The most effective methods of struggle and prevention! How to get rid of whiteflies on tomatoes in a greenhouse How to treat tomatoes from aphids and whiteflies

30.04.2020

Whitefly in the garden damages vegetable and berry crops

Whitefly in the garden: a description of the pest and signs of damage

In the process of development, the whitefly caterpillar absorbs plant juices. As a result, growth slows down, vital processes decrease. It is also dangerous because it is often a carrier infectious diseases.

With the defeat of insects of plant crops, yellowing and twisting of the leaves, wilting of the buds can be observed. To understand how to deal with the whitefly in the garden, you need to know about the features of its life.

Adults harm plants by releasing fecal pollen. This substance corrodes and deforms the surface of the culture. At the same time, the insect population is constantly growing - as the females lay eggs on the inside of the leaves.

A serious problem is that preparations for the destruction of adult pests are useless in the fight against larvae. Therefore, if you notice this insect in the garden, comprehensive control measures are needed.

There are many ways to deal with insects, the most effective is the use of chemicals: Aktara, Malathion, Neudosan. But whitefly eggs do not let chemicals in, so spraying courses are carried out systematically as larvae appear.

Less traumatic for plants folk remedies. With the help of various traps, infusions, solutions and fumigators, adults can be quite effectively neutralized and the crop saved.

Whitefly control on cabbage and cucumbers

Recognizing the appearance of a pest is quite simple. If you notice flying small insects of light ash and white color time to sound the alarm. And if you shake a few leaves, dozens of butterflies will fly into the air.

Pests feed on the juice of leaves and stems. As a result of their vital activity, a specific sticky coating is formed on the surface of plants - a suitable environment for the reproduction of bacteria and infections.

Chemicals

If a whitefly is found on cabbage, control measures include the use of all available means. For processing, use Ciermetrin, Actellik and other hormonal insecticides designed to kill sucking pests. Chemistry should not be used for processing 3-4 weeks before harvest, as well as during the flowering period.

Biological and folk methods

If a whitefly is found in the garden: how to get rid of it quickly, but not harm the plants at the same time, is a paramount question for the gardener.

One of the most the best means the fight is Verticillin based on the fungus Verticillium lecanii. This is a biological and completely safe drug that does not harm plants, the environment, and human health.

In addition, the affected plants are treated with a garlic solution prepared in the proportion of 100 grams of minced garlic per glass of water. The mixture is infused for 6 days, and for processing, 5 grams of the solution is mixed with 1 liter of water.

Lime mortar is well suited for the destruction of insects in the greenhouse. To prepare it, they take half a kilogram of bleach, dilute it in 12 liters of purified water, insist 5 hours and process the cultures.

In parallel, the leaves should be inspected for egg laying. If eggs are found, they should be thoroughly washed off with a sponge dampened with soapy water.

Whitefly on tomatoes: control measures, folk remedies

Tomatoes are more likely than other crops to be affected by the whitefly. Pest control is complicated by the fact that insects can simultaneously be present on the plant in three phases of development at once - eggs, larvae, butterflies.

sticky whitish coating on the leaves;
twisting and yellowing of leaves;
the formation of necrotic spots;
detection of larvae during visual inspection.

Disinfection of the greenhouse and soil

An insect may appear as in open ground, as well as in the greenhouse. Infection of greenhouses treated with disinfectants is possible through purchased soil, seedlings. To treat greenhouses after infection with a whitefly, Ecocide C is used, fumigation with sulfur checkers, the inner surface is washed with a solution of lime or 1% iron sulphate.

For the prevention of imported soil for greenhouses, or to level the surface of the site, they are treated with fungicides Alirin B, Baikal-EM1.

Beneficial insects

The fight against whitefly on tomatoes can be carried out by completely biological methods, involving breeding in greenhouse conditions. beneficial insects that destroy the pest.

This group includes ladybugs, lacewings, macrolofuses. This method is completely safe for plants and the environment, but is effective only with the primary signs of damage.

The approximate cost of five hundred Encarsia individuals is 300 rubles. You can buy it in specialized stores for gardening, it is recommended to place it in a greenhouse during the day. The fight against whitefly on cucumbers with the help of beneficial insects is not effective because of the hairs on the leaves in which the pest larvae hide.

Folk ways

spraying tomatoes with yarrow infusion (100 grams per 1 liter of hot water);
application of tincture of dandelion roots (80 grams of plant roots per 1 liter of boiling water)
using garlic tincture diluted with water.

If the situation is running and the whitefly has managed to noticeably harm the plants, it makes sense to use special chemicals. You can use the same as for processing cucumbers and cabbage. In greenhouses, treatment with Vertimek, Fitoverm, Pegasus is recommended.

Berry protection and whitefly control on strawberries and grapes

Often the whitefly starts on strawberries or strawberries. If measures are not taken in time, the insect can not only negatively affect the taste of berries, but also completely deprive the gardener of the crop. The waste products of the pest are a favorable environment for the formation of soot fungus, which levels the processes of photosynthesis.

The whitefly is less common on grapes; in this case, the control measures are the same as for strawberries. For fruit and berry crops, the most effective means are:

sprays with the active substance fipronil;
chemicals Actellik, Aktara, Pegasus;
biological methods based on the effects of insects;
folk remedies with the use of solutions and infusions.

When choosing a method of struggle, it is necessary to take into account the general condition of the plants and the concentration of whiteflies in the affected areas. It is necessary to take action at the first sign of an insect attack, since these pests tend to multiply rapidly and spread to other crops.

Preventive measures to protect the garden from whiteflies

The whitefly can live and breed indoors and outdoors. After winter, the insect can enter the greenhouse along with the seedlings.

An insect can pass to planting material from indoor plants. It is recommended to regularly inspect all home flowers, and disinfect the tools and containers for planting periodically. To minimize the influence of an insect, you need to plant plants correctly, respect the neighborhood, and avoid accuracy.

Outcome

The whitefly can cause serious damage to horticultural and horticultural plants if proper measures are not taken when it appears. When using traditional methods of protection in combination with prevention and careful care of plants, you can count on a minimal risk of pest damage.

In the garden and in greenhouses, whiteflies often harm tomatoes, methods of combating which have been developed over the years. As soon as the seedlings are planted in a permanent place in the ground, it is necessary to carefully examine the back side of its leaves in a week or two. This is where many pests hide. horticultural crops, among them is the whitefly, a bit like a moth, but much smaller. From tomatoes, it can migrate to other plants, causing significant damage to the crop.

Signs of the presence of whiteflies on tomatoes are obvious:

yellowish or whitish spots appeared on the leaves, later they turn black;
the top of the leaves (but not those that grow on the top of the bush, but located below) acquires a varnished sheen;
leaves begin to curl and wither;
if you touch a bush of tomatoes, flying white midges are noticeable;
fruits ripen slowly, whitish streaks are noticeable in the pulp.

All this suggests that whiteflies have appeared on the tomatoes and they must be fought.

The moth is small, but the harm is considerable

To fight such a white and fluffy-looking enemy that seriously harms tomatoes, you can competently and effectively by studying it life cycle. The whitefly is a small insect, from one and a half to three millimeters in length, its white wings are covered with a fine powdery coating. On the leaves of plants, whiteflies are located on the underside, and therefore they may not be immediately noticed. However, traces of their vital activity will be clearly visible when the colony increases and begins to spread.

One individual can lay up to 250 eggs. Caterpillars secrete a waxy enzyme that sticks them to surfaces. The larvae feed by sucking the juice from the tomato leaf, causing it to gradually wither and dry out. On closer examination of the back side of a still green and healthy-looking leaf, you can see only small gray formations that look like grains of sand. But more damage is done to parts of the plant that are below the settlement of insects.

All the results of the vital activity of whiteflies fall on the lower leaves, forming at first a shiny sticky coating. In the feces of these moths, there are spores of soot fungi that grow into the tissue of the leaves. The infected part of the plant first acquires a whitish coating, and then turns black. If there are a lot of insects, planting tomatoes can no longer be helped. You just need to think about neighboring plants and save them by destroying the tomato plantation. In order not to have to do this, you need to carefully and regularly inspect the tomato bushes.

The best method is prevention

Before you fight the whitefly on tomatoes, you can prevent its appearance by observing the rules of agricultural technology.

The first rule - tomato seedlings are placed on optimal scheme: on one square meter only four bushes should grow (50x50 or 70x30). Such proportions will allow air to freely walk between plants, which prevents the appearance of many diseases. If the landings are close, mold and other fungi can start. In addition, seedlings literally win nutrients from each other, and all parts of the plant suffer from a lack of sunlight. Accordingly, they weaken and succumb to pests.
Since autumn, you need to take care of the site and clear it of tops, carefully loosen the ground.
When purchasing tomato seedlings on the market, one must carefully consider the leaves from below, because that is where insects hide.
If tomatoes will be grown in a greenhouse, in frosty weather it is necessary to open it so that the soil inside freezes. There is a chance that the pests hiding in it will die.
If the seedlings have already grown, the greenhouse should be ventilated more often. Tomatoes normally tolerate temperatures of +15 degrees, and for whiteflies this is very uncomfortable.

Compost should not be laid in the garden for the winter, because all harmful insects and pathogens can overwinter there.

In addition, we must remember that these small moths can live anywhere, including on any purchased flowers that are placed in the house. If seedlings are grown in winter on windows, it is possible that pests can start here as well.

Gardeners process tomatoes with all kinds of whitefly remedies in order to win back good harvest. There are many techniques that everyone uses according to their choice.

People's ingenuity to help

Garden owners share valuable experience and advice on how to destroy the whitefly and get it out of the greenhouse. Not all methods are effective, but if you are afraid to use chemicals, you should use proven folk remedies.

There is an opinion that whiteflies willingly flock to the planes yellow color. Pieces of yellow cardboard are smeared with some oily substance so that the moths stick, and hung in a greenhouse. Similar traps with adhesive composition are now sold in retail chains.
They also place ordinary sticky tapes that are bought for flies or moths. To use them more effectively, they are cut into several pieces - thus one skein is enough for the entire area of the greenhouse.
Some argue that whiteflies can be gotten rid of with tobacco smoke. To do this, a small fire is bred inside the greenhouse, where they throw a handful of tobacco leaves.
At night, whiteflies flock to the light. Therefore, in greenhouses or close to the site, they put an old kerosene lantern or supply the mains for an ordinary incandescent lamp. You can also put a blowtorch on the threshold of the greenhouse: many insects will die, and carbon dioxide will be beneficial, especially for pollinating cucumbers, as some gardeners notice.
If there are relatively few whiteflies on tomatoes, the insects are washed off with a stream of water from a hose.

What herbs will save tomatoes?

All these whitefly remedies can destroy adults, but what about the larvae? There are two options: either periodically repeat the procedure, or use repellent infusions of wild and cultivated plants.

The most popular and easily accessible is garlic infusion. Weigh 150 g of cloves, grind (for a greater effect, you can crush it into gruel), pour 1 liter of water. The mixture is placed in a container that closes tightly, insist five days. 10 grams of the concentrate is diluted in a liter of water and sprayed with a bed of tomatoes.
Dig up 200-250 g of dandelion roots or collect 400 g of its fresh leaves. The crushed mixture is placed in 10 liters warm water, insist for several hours. Strained infusion process tomatoes. Sometimes it is recommended to add a handful of crushed onions.
Tomatoes can also fight against the whitefly, but in the form of an infusion of tops. Since the plants must be treated repeatedly with such infusions, a concentrate is prepared, which can be stored for some time. In a liter of water, 4 kg of tomato tops are insisted for two or three hours, which are collected during pinching. Then the infusion is brought to a boil, the tops are squeezed out, the concentrate is stored in a hermetically sealed container. For spraying, take one part of the broth to three parts of water.
Medicinal yarrow is also an assistant to tomatoes. Collect 800 g of grass, pour boiling water and add more water so that there is a bucket of infusion in the volume. The mixture is infused for two days, then tomatoes can be processed.
Tobacco is used against the whitefly, or rather, a product based on it - cigarettes. The filter is separated from them, the contents of the remaining part are poured into a bucket, warm water is poured, insisted for two days. After straining, it is recommended to add 15-20 g detergent and spray the plants with this composition.

Tomatoes affected by the whitefly are treated with these infusions, often every decade. It is imperative that after the procedure it is necessary to loosen the soil under the plants in order to sprinkle fallen pests with earth.

Insecticides give a 100% result

Trading networks offer wide range chemicals suitable for whitefly control:

"Aktellik";
"Verticillin";
"Confidor";
"Fufanon";
"Pegasus";
"Aktara";
"Boverin";
"Citkor" and many others.

They must be used by carefully studying the instructions. It is better to use chemical insecticides during the period when there are no fruits - in this case, toxic substances will have time to evaporate. You need to know that not all preparations are prepared using chemical toxins. For example, "Verticillin" contains spores of a fungus that destroys insects by penetrating into their body.

In addition to the listed funds, it successfully fights whitefly pharmacy drug- an emulsion of benzyl benzoate, which removes lice. According to the instructions, dilute 25-35 ml of the product in 1 liter of water and spray the tomatoes.

The tested substance is a concentrated solution of laundry soap. It is finely rubbed, in a ratio of 1: 6 pour warm water, wait until all the soap has dissolved, and apply against the whitefly.

In the greenhouse resort to another method chemical protection from insects - spirals from mosquitoes. They are lit at night and thus clean the tomatoes from the whitefly.

When using insecticides, the waiting time must be strictly observed. And it is advisable to use them only if the situation is running and the pest threatens to move to other plants.

The whitefly is a type of insect that infects tomatoes. You can observe the vital activity of the whitefly on the bottom of the sheet. The food product of insects is the liquid contained in the leaves of tomatoes.

Colonies of whiteflies settle on the underside of a tomato leaf

Description of the life of the whitefly

The whitefly moth has a white color and lives on the leaves of tomatoes, eating the liquid from them and disrupting the metabolism in the plant. This entails damage to the crop and a reduction in the volume of tomatoes.

Other vital signs of the whitefly are:

yellow and dried leaves;
heterogeneous ripening of tomatoes;
the flesh becomes white.

The active life of the whitefly is carried out on the underside of the leaf, but transparent spots form on the top. Over time, they change color to black. Such a plaque is a fungal disease that provokes the activity of insects.

Whiteflies feed on liquid from tomato leaves.

Over time, plaque passes to the crop, as a result of which it becomes unclaimed and unusable. When you inspect the planting material, you find moths, but no larvae were seen on it - this indicates that the crop can still be saved.

It is enough to process the planting material several times with a mixture of soap and special means to eliminate the risk of infection. For effective treatment, it is necessary to use those preparations, which include:

pyrethrum;
pyrimiphosmethyl.

Whitefly insects carry the virus and provoke leaf and fruit diseases in the plant. Over time, her labors provoke a change in the shape and color of the leaves, and their death. As a result, the shoots stop growing.

During the treatment of the plant, pay attention to the fact that different preparations must be used to remove the whitefly, depending on the development of the insect.

The moth itself poses less danger to planting material than its larvae. It is extremely difficult to remove whitefly larvae. They have an outer layer that protects them from external influences, so many drugs are ineffective.

This does not mean that the larvae on the seedlings do not need to be removed, they must be dealt with.

Whitefly larvae are very voracious

Fighting methods

Insect control should be carried out at any stage of the development of the life of the whitefly. An effective method of controlling insects can be called:

Chemical treatment of planting material should be carried out in favorable weather. Cloudy weather is better, without rain and wind. It can be carried out in sunny calm weather and make sure that a shadow forms around the planting material. It is impossible to process planting material using a preparation with which you have already processed tomatoes. The whitefly insect has the ability to develop resistance to drugs.

Spraying of tomatoes is carried out in calm cloudy weather

To remove insects from seedlings, evil preparations are not used. If you want to speed up the treatment process, then switching to more saturated drugs is not an option. Chemical preparations accumulate in the plant and soil. After that, the preparations are difficult to remove from the plant and soil. To select the drug and the nature of the treatment, you need to select different periods insect development and adjust the fight to their life cycle.

The essence of the use of different drugs:

Insecticides of systemic action, get into inner part plants, destroying sucking insects.
Insecticides of contact action manifest themselves at the time of contact with the pest.
Soap solutions are used to eliminate the pest in a way that is gentle on the plant.

Based on the yarrow herb, a drug is prepared that helps in the fight against the pest. With the help of a sharp temperature drop or exposing the planting material to gusts of cold air, the whitefly can be eliminated. Insect pests have a negative attitude to lower temperatures.

Help in the fight against whitefly adhesive tapes. Or other products that lubricate with sticky preparations.

To wipe the foliage or spray special preparations on green areas, you can use yarrow or soapy water. In the fight against pests, it is important to use plain clean water, wiping the foliage with it helps in the fight against insects.

Water affects the moths and is not effective in the fight against larvae, even to no avail.

When clouds of midges rise from plants with random shaking, the vegetable grower begins to worry about how to get rid of the whitefly in the greenhouse on tomatoes and other crops. Small insects resemble aphids and cause the same damage by drinking the juice from fleshy leaves. But tomatoes suffer not only from this.

This insect is a species of homoptera. The size adult does not exceed 3 mm, and when viewed through a magnifying glass, opaque white wings and a light, almost uncolored body become visible. The flying whitefly looks like an aphid or a small moth.

When several mature insects enter greenhouses and greenhouses, it is quite difficult to notice them, so the gardener pays attention to the consequences of the activity of the larvae:

Tomato seedlings develop twisted or deformed leaves that are smaller than normal. On the reverse side, you can see small caterpillars (about 1-2 mm) or traces of their stay: the remains of cocoons and secretions in the form of transparent, glue-like scales.
Affected plants lag behind in growth, have a stunted appearance.
On adult bushes, the ovaries cease to fill and ripen normally, acquire a pale shade or become covered with a dark coating.
When breeding, whiteflies can already be seen. They swirl between tomatoes and take off from the plant when shaken.
Over time, dark spots form on leaves where larvae and their secretions have been seen. This is what a sooty fungus looks like, which reproduces well and grows on a nutrient medium from insect secretions.

If you see signs of a whitefly, get rid of the pest immediately. If this is not done, the larvae will pupate and turn into new flying insects, each female is able to lay more than 200 eggs.

The easiest way is to destroy flying individuals. The larvae on the underside of the leaves are less accessible to the drug. When spraying bushes, you need to take into account their habitats and try to process the leaves from the underside.

When the caterpillars pupate, it will be almost impossible to destroy them. Therefore, the fight against whiteflies on tomatoes should be carried out several times in a row, with an interval of 5-7 days, during which the pupae turn into adult flying insects.

Insect control methods

Control methods against whiteflies on tomatoes can be divided into mechanical, chemical and biological. All of them can be quite effective if you apply them correctly and process the tomatoes several times. These methods are capable of destroying both the adult generation and the larval stage.

There are also folk ways how to deal with whitefly. They are quite harmless to humans, but may be ineffective if the pests have had time to multiply strongly. Folk methods are aimed more at scaring away insects than at their total destruction, therefore, such treatment is best done as a preventive measure if there is the slightest suspicion of the presence of whiteflies in the greenhouse.

Chemical methods of protection

The use of insecticides is a last resort in the fight against whitefly in a greenhouse on tomatoes and other vegetables. All drugs are toxic, and spraying aerosols indoors can be harmful to the owner himself. But with a strong whitefly infection, all means are good.

When choosing how to treat plants, you can stop at special insecticides from sucking pests. They will destroy not only the whitefly, but also aphids, mites, bedbugs and other insects that suck juices, piercing the vegetation cover with their proboscises. From the drugs you can choose: Actellik and Aktara, Cypermethrin and Permethrin, Malathion, Neudosan, etc.

Aerosol Kra-Deo Super is intended for flying insects. It is desirable to use it so that for some time the greenhouse remains closed, and no one enters it for at least a few hours. It is convenient to process the greenhouse at night. Biotlin has a similar effect.

Mechanical methods

Most simple methods- collecting the affected leaves along with the larvae and washing them off with soapy water by hand. This is laborious, but quite feasible when the colonies of larvae are few. Twisted leaves can be cut off and burned. We fight with larvae and a sponge dipped in a solution of laundry soap, gently moving along the underside of each affected leaf.

For flying individuals, you need to make sticky traps. With a small number of insects, a fly tape can be used. But with a massive departure of whiteflies, it is better to make special traps.

American entomologists have discovered that whiteflies are attracted to yellow and blue colors. In connection with this feature of the behavior of adult insects, a method of catching them was developed. To attract pests to traps, they are painted in the indicated colors. The basis of the trap can be a piece of cardboard or plywood.

So, we get rid of the whitefly on tomatoes by the most advanced method. For this it is recommended:

paint a sheet of cardboard in yellow or blue (A4 format will be enough for 1-2 m³);
make a hole for hanging, thread the cord;
apply a layer of petroleum jelly to the surface (you can mix it with honey);
hang Velcro over the greenhouse area at a height of 1.5-1.7 m.

Flying whiteflies will be attracted to bright surfaces and stick to the viscous mass. Traps are cleaned from time to time, scraping off the mass along with midges. After that, you can apply a new layer of petroleum jelly and hang the cardboard in the greenhouse.

Biological methods

On plants, you can also see a decaying lion, or lacewing larvae. These are small gray insects, with a baggy body, similar to bugs without wings. Often a smoldering lion sticks on itself the shells of the aphids it has eaten. You can transfer the lacewing larva to the greenhouse or look for the laying of its eggs: yellowish balls about 1 mm in size on long, thin “legs” sticking out perpendicular to the leaf. It is easy to catch an adult insect, which is also a predator. This graceful greenish creature with large transparent wings and expressive golden eyes.

In large greenhouse farms, you can try to buy encarsia - a miniature rider that lays eggs in the bodies of whitefly larvae. Insects need to be released from the test tube in their greenhouse. The little helpers will take care of the destruction of pests themselves.

Folk methods

A good way to get rid of whiteflies in a greenhouse is to fumigate the area with smoke. It may help against flying insects and larvae, but the cocoons will remain intact, so the treatment will have to be repeated when a new generation hatches. For smoking, sawdust is placed on a baking sheet, moistened with water and put everything on an electric stove.

To scare off whiteflies that have recently entered the greenhouse, spraying with infusions of herbs is used:

Take about 100 g of yarrow herb, grind and pour 1 liter of water. Insist 2 days.
Chop dandelions along with the roots, take 100 g of mass and insist in 1 liter of water for 2-3 days.
Pass 1 head of garlic through a meat grinder, pour 0.5 liters of water and leave for 2-3 days.
Instead of a garlic bulb, you can use its arrows, which are removed from the beds. It will take about 100 g of gruel from arrows and 1 liter of water.

Spray the plantings of tomatoes and other plants in the greenhouse with the resulting infusions to mask their smell with unpleasant odors. If the whitefly does not find its food crops, it will leave the premises.

A small butterfly that can cause serious harm to vegetable crops, planted on personal plot. You should know the basic principles of development and reproduction of these small insects in order to successfully control the whitefly in a greenhouse on tomatoes.

This butterfly is able to breed, forming huge colonies. One female lays up to 250 eggs. The whitefly is dangerous for planted tomatoes, but other than that, it is not immune to its invasion until 300 different types other agricultural crops.

Characteristics of the whitefly

There are 2 types of such insects: indoor and greenhouse. The latter live in greenhouse conditions. They like wet and warm air. Primary infection occurs with planting material or through already infected plants.

A small (up to 3 mm) whitefly, similar to a garden aphid, but its wings have a white coating. She often settles as part of a large group on the reverse side of the leaves. There, she lays eggs, from which the larvae subsequently hatch. It is they who, digging into the plant and drinking juice from it, can cause serious harm, and subsequently lead to the death of the plant.

At a time when the larvae have not yet turned into a cocoon, they can be removed with the help of insecticides. The dense shell reliably protects the larva during this period. In the future, when the time for hatching of adults begins and the time for the appearance of a new generation of insects again comes, the process of fighting them may fail.

After micro-destruction of the foliage, the sap of the plant is released to the surface, and together with the excrement of this insect, an excellent environment is formed for the development of a fungal infection. On the leaves of tomatoes, places of a silvery coating first appear, but over time, sooty mushrooms resembling dark spots form on them.

The first signs of pest damage

To know how to treat plants from whiteflies, you should study the main signs that appear on initial stage plant damage by these insects:

in the greenhouse you can see flying small insects;
when shaking a tomato bush, a cloud of fluttering small butterflies appears above it;
on the underside of the tomato leaves, as well as on its other parts, almost transparent scaly segments are stuck;

the appearance of dark spots on the plant is a clear sign of damage by a soot fungus, which is formed on the excrement of whiteflies;
plants do not grow fast enough;
twisted leaves appear on the stems of greenhouse tomatoes;
fruits of tomatoes acquire a whitish hue, cease to ripen.

If such features are found, it can be suspected that the plants are already affected by this pest. Immediately after this, get rid of the insect.

Methods of destruction

Novice gardeners may not have encountered such a phenomenon, and do not know how to get rid of these insects. Flying individuals are much easier to destroy than their larvae. In addition, adults themselves are not as dangerous as their newly hatched cubs. Therefore, the fight against the whitefly on tomatoes should begin at the moment the flying midges appear, but before the time when they lay eggs. To destroy these pests, we get rid of in several ways.

With the help of chemicals

Infected plants are sprayed with insecticides, which can be purchased at gardening stores. Such agents act on tomato pests through plants, after the poison is absorbed into the stems and leaves of the bushes. Therefore, it is necessary to choose suitable preparations for the treatment of bushes.

During the formation of ovaries on tomatoes, soap-based products are used. This takes into account the degree of infestation by insects. Of these drugs are recognized as the best: Pegasus, Fosbecid, Aktara, Confidor, Mospilan. How to deal with the whitefly on tomato seedlings with these means is indicated in the instructions.

Smoke destruction

The method of getting rid of whiteflies on tomatoes by fumigation is one of the most effective methods for greenhouse cultivation. It is enough to carry out such a procedure twice during the season, and the pest will not appear on tomato seedlings. After such a procedure, not only adults will die, but also larvae and whitefly pupae.

Techniques of mechanical methods

With this method, the leaves should be treated with a soapy solution, and then washed off with clean water. In this way, you can get rid of the deposited larvae, freeing the surface of the foliage and making it possible for the plant to receive oxygen.

Special insect traps with adhesive properties can also help get rid of whiteflies in the greenhouse. They can be purchased at specialized stores or elsewhere. If desired, it is built independently. Lubricate cardboard with bright coloring with Vaseline.

For insects that have flocked to such a surface, the vaseline surface will be fatal. After filling with midges, you can erase this layer and re-lubricate it with petroleum jelly.

Before getting rid of the whitefly, prepare the bait from heated rosin, castor oil and honey. Then, apply it on a dense surface bright color and exhibited in the greenhouse along the aisles.

Biological method

Also, in the greenhouse between the rows of tomatoes hung carton boxes, with pupae placed in them.

After the appearance of insects, they rush to the whitefly and eat their larvae located on the leaves of tomatoes. Knows how to deal with whitefly, common ladybug, which eats both adults and larvae, as well as the macrolofus bug. For 1 sq. m. of greenhouse area with tomatoes, 5 of these bugs are enough. After 15 days, the addition of new individuals of Markofolus should be repeated.

Folk wrestling techniques

These methods of struggle have the safest effect on human body. But they have to be carried out in the greenhouse repeatedly to cope with the pest.

It is detrimental to insects cold air. Before you get rid of the whitefly in the greenhouse on tomatoes, if possible, the seedlings are taken out for some time in the open air. The whitefly cannot stand the smell of garlic. Therefore, a tincture is prepared from it, it is enough to add 2 chopped cloves of garlic to 2 liters of boiling water, and then sprinkle them with tomato bushes.

Some people use laundry soap to keep moths from breeding. Soap after grinding on a grater is dissolved in hot water, at the rate of 1 part soap to 6 parts liquid. Then, the planted vegetables are sprayed. Yarrow infusion will help to cope with the whitefly. To do this, 10 g of dried grass is brewed in 1.5 liters of boiling water. Then the tomatoes are sprayed. It is advisable to lift the branches so that the solution falls on their underside.

You can treat tomatoes with a pharmaceutical remedy for scabies. It is diluted in water and sprayed on plants.
Preventive actions
If measures are taken to prevent the appearance of whiteflies on tomatoes, then other methods may not be required to cope with the invasion of insects. Metal structures should be painted in advance. The land must be carefully cleaned and freed from last year's vegetation.
Purchased seedlings of tomatoes are carefully checked for the possibility of infection by insects. After disembarkation, a mandatory procedure for ventilating the greenhouse should be provided, and the temperature inside the greenhouse should not exceed +15 degrees.