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How to effectively get rid of white and black gnats on tomatoes

How to effectively get rid of white and black gnats on tomatoes


It's nice to pick a self-grown tomato from the garden, just eat it or cook something tasty and healthy. But it becomes insulting to tears when pests spoil the crop. Seemingly small, but far from harmless white midges, they drink life-giving juices from the plant, multiply, but they have authority. In this article, we will find out how and how you can deal with these tomato flies, as well as whether you can get rid of them forever.

Harmful whitefly on tomatoes

Most of the insects that parasitize tomatoes are dangerous aphids. It spreads the disease with the help of viruses, causes abnormalities in plants. Such an attack can overtake during the summer season, especially during the growing season and ripening of fruits.

High fertility leads to the fact that the leaves are completely covered with it. Most often white and black midges settle on tomatoes. The first is called the whitefly, the second is the winged aphid in the popular way - the leafhopper.

If a light bloom resembling flour appears on the lower part of the leaves, then this is a whitefly. Body size no more than 3 mm, has 4 porches. She jumps well, flies, easily moves around the site or greenhouse. The feces of adults cause damage to the lower parts of the plants, more than they eat. Emerging from their larvae, the caterpillars secrete a waxy substance that firmly adheres the parasite to the plant. The insect sticks to the plate, drinks juices, the reserves of which are enough for the development of the pupa, while the plantation dies.

It also suffers from the enzymes of midges, in the spores of which there are sooty fungi that destroy green tissues. The surface of the leaves acquires a brilliant tint, and the wounded places are covered with bloom, turn black.

It is also possible to determine the presence of a parasite by:

  • twisted leaves;
  • yellowed parts of the plant;
  • unevenly ripening fruits;
  • white veins inside the tomato.

At the sight of yellowed curled plants, some begin to abundantly moisturize the soil, do not rush. Initially, you need to inspect or touch the plates. If a flock of small white insects has taken off, then the problem is not drought.

Black leafhopper and the reasons for its appearance on seedlings

There is also a small black midge with and without wings. Its life cycle depends on the presence of ants on the backyard. Ant nests serve as a home for them at night, and they can lay eggs there. They do not have good flight ability, but in case of danger, they quickly move to neighboring bushes, form massive clusters. They feed, like whiteflies, with nutritious juices, more often they affect the inner side of the leaves.

The reasons for the appearance of both are similar:

  • warmth, high humidity, no wind;
  • planting density, both in greenhouses and outdoors;
  • application of untested fertilizers, incl. contaminated manure;
  • planting seedlings infected with pest larvae.

With the listed climatic factors, white and black insects are able to spread to all crops over the summer. Pests live up to 25 days, i.e. during the warm season, several generations are replaced.

Insects are parasites, their larvae settle in the petals of flowers. In order not to bring midges to the site or the greenhouse, which can move to tomatoes and other plants, it is necessary to carefully examine the bouquets.

How to deal with white and black tomato gnats?

Some summer residents try to deal with small formations of pests with a hose, flushing them with water, or destroy them with their hands. Such manipulations are ineffective. Rather it will help:

  1. Fumigation method. It is held in greenhouses at least 2 times a year. Vapors, stagnant air, warmth in them are an excellent environment for midges and the formation of a sooty fungus. Sulfur candles will help. Previously, it is better to temporarily take the tomatoes away.
  2. Chemical attack. It is carried out with mild pesticidal, organic insecticides substances with an abundance of insects. Safer will be funds for pyrethrins, fatty acids, plant esters. Popular against midges: "Aktafit", "Fufanon", "Pegasus". Gardening shops offer many options. Solutions are prepared strictly according to the attached instructions. Tomatoes are processed 3 times every 5 days. There are single-use drugs. You need to carefully study the composition and rules for working with them.

In an effort to quickly get rid of pests, do not use aggressive pesticides. They are able to accumulate in the ground and are difficult to remove. Also, the substance must correspond to a certain stage of insect development (adult, larva, caterpillar).

Methods for destroying flies, proven over the years

It would be preferable to give first place to folk methods of fighting whiteflies or black leafhoppers. Chemical treatment should be started when they have not helped. The main enemies of midges are laundry soap and vinegar (alkali, acid). Solutions are prepared with them:

  • take 2 tbsp. tablespoons of liquid soap, dissolved with 0.5 liters of water, add sunflower oil;
  • 10 g of soap, diluted in 10 liters of warm water with a glass of ash;
  • 1 tbsp. spoon of 9% vinegar per liter.

Does not like aphids and individuals of its varieties, hot peppers, garlic, mustard. 200 g of chopped garlic is insisted in a bucket of water, stirring. Before use, pour 50 g of dry mustard and 20 hot red pepper. Onion peels will also help. It is boiled for half an hour, the solution should have a high concentration: 300 g in a small bucket.

They are treated with such feeds twice: in the morning and in the evening.

Preventive measures to save tomatoes from parasites

Fighting white or black midges can ruin the entire summer season. It is easier and more humane for a plant to prevent the spread of unexpected guests. Whitefly, leafhoppers, like all parasites, do not like the cold. Elementary airing of the greenhouse in the winter to get rid of their appearance.

Pulling out weeds, tops, digging up the ground, removing compost will also help you get rid of flies. If possible, the tomatoes are taken out in the cool. You can set up a trap in the greenhouse. Placed pieces of bright yellow plywood are smeared with glue. Ordinary fly tape will work.

It is worth trying the biological method, which consists in attracting insects that eat midge larvae... Prudent summer residents plant aromatic herbs next to tomato seedlings, they attract:

  • ladybirds;
  • wasps, bees;
  • lacewing;
  • hoverflies.

White and black midges do not tolerate the smell of calendula, dill, onions, garlic.

The sweet liquid secreted by harmful insects attracts ants. The presence of paths near the beds signals their presence. Therefore, you also need to get rid of anthills, because eggs are stored there.

In order for tomatoes to grow healthy, you should not plant them densely, even if there is not much land. When plants are close to each other, there is a lack of light, nutrients in the soil. The shoots are weakening, and the whitefly is awake. It finishes off the culture, destroys the harvest. Therefore, you do not need to do a tight fit. Fewer large, intact tomatoes are preferable than more painful fruits from one area.


How to deal with gnats on tomatoes

Sooner or later, each owner of a summer cottage will experience an unpleasant phenomenon during the season - an attack on plants by pests. If you find them in time, then in most cases vegetable crops can be saved. Otherwise, insect attacks end in the death of plants.

Pests can appear in the greenhouse, on seedlings and in the garden, there is no guarantee that they will not penetrate into the closed ground. Especially often small unpleasant insects with wings attack tomatoes. It is difficult to find them in the absence of experience.


Black insects

Insects look like small black flies with wings and usually live on the inside of the leaves, where they feed on the sap of the crop. They are popularly called leafhoppers, but in fact they are a winged aphid, which, like all representatives of this species, uses ants living on the site in its life cycle.

Ants provide vehicles and shelters for flies - ant nests, where they hide for the night and store their eggs.

Fighting black winged aphids is not easy. The places of their main accumulation (inner parts of the leaf) are difficult to reach both manually and when spraying. Not capable of rapid flight, with the threat of manual extermination of their population, they rather quickly migrate to neighboring bushes.

The use of chemicals in the breeding of aphids is also ineffective due to the small number of hits of the agent on the inner parts of the culture where the eggs are laid. The new generation, not affected by the drug, is rapidly developing and restoring the number of pests on tomatoes.

Restrictions on the use of chemicals are associated with the coincidence of the active life of midges with the time of flowering and the formation of plant ovaries. Connoisseurs-gardeners recommend carrying out complex measures for the extermination of black midges:

  1. Find anthills on the site and treat them with chemicals in order to destroy nesting sites and remove young aphids from eggs.
  2. Treat plants with harmless products created from popular and affordable substances, according to folk recipes.

Treatment with homemade mixtures, unlike chemical preparations, does not harm the developing culture and fruits and brings a tangible effect.

What can you use:

  • hot pepper solution with mustard and garlic
  • dandelion tincture
  • decoction of onion husks
  • vinegar solution.

Folk recipes have a double effect - they scare away pests and affect them. The components contained in solutions and infusions are natural insect poisons.

How to get rid of the invasion of black midges simply and quickly:

  1. Take the ingredients - one packet of red hot ground pepper, three tablespoons of mustard and three to five cloves of garlic.
  2. Grind the garlic cloves into a gruel.
  3. Mix them with other ingredients.
  4. Pour the mixture with five liters of warm water.
  5. Insist for three days.
  6. Strain and spray with the culture solution, including the soil around.

Dandelion juice is also not loved by black flies, so the weed is suitable for preparing the following successful remedy:

  1. Take one kilogram of dandelions.
  2. Soak them in a bucket of water.
  3. Pour one tablespoon of washing powder with one packet of red ground pepper there.
  4. Insist warm for a day.
  5. Strain, spray plants and soil.

You can also use onion husks and vinegar, which must be diluted with water so as not to burn the vegetation.


Black midges on tomatoes - methods of control and prevention

Gardeners have to fight for the harvest not only with the vagaries of the weather, but also with harmful insects. These pests include black midges. If you do not get rid of them in time, the plants will dry out and die.

Who are the black midges

The real name of black midges is leafhoppers. These are the closest relatives of aphids. Leafhoppers reproduce rapidly, sucking juices from wild and cultivated plants.

The pest is a small insect 1–2 mm long. The leafhoppers spend the winter on plant debris. In spring they feed on weeds and are almost invisible. In early to mid-June, pests lay eggs on the back of tomato leaves. After 1-2 weeks, larvae appear, sucking the juice from the leaf blades.

Harm from black midges

Adult plants and newly planted seedlings can suffer from leafhoppers. By parasitizing the plant, leafhoppers weaken it and can lead to death. Pests quickly spread to neighboring bushes, destroying the entire tomato plantation.

Black midges on tomatoes not only weaken the plant by feeding on its juices, but also carry viral and mycoplasma diseases. As a result, tomato leaves are deformed, change color, dry out from the edges and fall off.

During the summer, up to 5 generations of leafhoppers develop, and the yield loss from them reaches 30%. Affected tomato bushes produce tasteless and underdeveloped fruits.

Sticky insect secretions appear as black bloom on leaves and shoots. It attracts ants and pollutes plants.

Who can be confused with black midges

Cicadocia must be distinguished from mushroom mosquitoes - small flying insects that often grow on tomato seedlings when grown on windowsills. Fungus gnats are attracted to the moist soil in which the insects lay their eggs. You can scare away black midges by changing the irrigation regime - dry soil is unattractive for them.

Control methods

It is easy to get rid of adult black flies. Use duct tape or fumigator. Remove larvae living in the upper soil layer with a weak solution of potassium permanganate. You can bury a clove of garlic or a pinch of tobacco dust in pots with seedlings - the smell will scare away adult insects, and they will not be able to lay eggs.

Black flies are easier to get rid of than aphids. Perform 2-3 treatments with finished preparations or folk remedies.

Ready funds

Fufanon will help to destroy the pest. The drug has a second trade name - Karbofos. Prepare the spray solution according to the instructions attached to the preparation. Observe the dosage carefully, as Fufanon is poisonous. Repeat the treatment after 5-7 days.

In addition to Fufanon against black midges, it is allowed to use:

  • Fozalon is a poison of contact and intestinal action. Works well at low temperatures. Does not burn leaves.
  • Aktar - can be sprayed on plants or diluted in water for irrigation.
  • Benzophosphate - due to its strong toxicity, the drug is used no more than 2 times per season
  • Faskord is a fast-acting preparation of contact-intestinal action with a long period of protection.

Black midges in the greenhouse are reliably destroyed by sulfuric smoke. After high-quality processing of the greenhouse, the entire population of insects, including eggs, perishes. To obtain smoke, sulfur checkers or powdered sulfur are used, spread out on baking sheets.

Folk remedies

During the ripening period of tomatoes, it is forbidden to spray plants with poisons. Use folk remedies.

Mechanical collection and manual destruction of insects are suitable if there are few insects. Pests are collected from bushes and crushed. Single leafhoppers can be washed off the leaves with a stream of cold water.

With a large number of pests, manual collection will not help - you will have to prepare a potion that is deadly for leafhoppers and spray the infected plantings.

  • ground red pepper
  • mustard powder
  • garlic arrows
  • onion peel
  • ash
  • wormwood
  • dandelions.

You can use a combination of any of the listed ingredients, adding some liquid soap for adhesion. The prepared products do not last long and are washed off by the first rain, so repeat the treatments regularly.

Prevention of leafhoppers

If black flies appear on tomatoes every year, take preventive measures. For this purpose, plant plants with an unpleasant smell for the pest around the tomato beds. Onions, garlic, or calendula work well. Plant onions and garlic not only along the perimeter of the plantings, but also every 2-3 rows of tomatoes.

Do not weed out dill, accidentally sown in a tomato garden - predatory insects live in its umbrellas, eating leafhoppers and aphids.

Kill weeds quickly.Adult leafhoppers are sitting on weeds, ready to fly to tomato bushes and lay eggs.

If you follow the recommendations, you will quickly get rid of small black midges that have settled on tomatoes.


How to deal with gnats on tomatoes?

Small insects that appear on tomatoes, harmless in appearance, can cause significant damage to the crop. Almost all types of midges living on tomatoes are aphids. They populate the planting sites and begin to extract juices from the seedlings, multiplying at a rapid pace in favorable conditions. In this case, there is no need to expect a good harvest.

The most common insects that inhabit tomatoes are:

  • black winged aphid
  • whitefly.

White midges on tomatoes, like black ones, belong to the category of pests and must be destroyed. Let's consider each pest separately, and determine how to deal with it.

Black insects

Insects look like small black flies with wings and usually live on the inside of the leaves, where they feed on the sap of the crop. They are popularly called leafhoppers, but in fact they are a winged aphid, which, like all representatives of this species, uses ants living on the site in its life cycle.

Ants provide vehicles and shelters for flies - ant nests, where they hide for the night and store their eggs.

Fighting black winged aphids is not easy. The places of their main accumulation (inner parts of the leaf) are difficult to reach both manually and when spraying. Not capable of rapid flight, with the threat of manual extermination of their population, they rather quickly migrate to neighboring bushes.

The use of chemicals in the breeding of aphids is also ineffective due to the small number of hits of the agent on the inner parts of the culture where the eggs are laid. The new generation, not affected by the drug, is rapidly developing and restoring the number of pests on tomatoes.

Restrictions on the use of chemicals are associated with the coincidence of the active life of midges with the time of flowering and the formation of plant ovaries. Connoisseurs-gardeners recommend carrying out complex measures for the extermination of black midges:

  1. Find anthills on the site and treat them with chemicals in order to destroy nesting sites and remove young aphids from eggs.
  2. Treat plants with harmless products created from popular and affordable substances, according to folk recipes.

Treatment with homemade mixtures, unlike chemical preparations, does not harm the developing culture and fruits and brings a tangible effect.

What can you use:

  • hot pepper solution with mustard and garlic
  • dandelion tincture
  • decoction of onion husks
  • vinegar solution.

Folk recipes have a double effect - they scare away pests and affect them. The components contained in solutions and infusions are natural insect poisons.

How to get rid of the invasion of black midges simply and quickly:

  1. Take the ingredients - one packet of red hot ground pepper, three tablespoons of mustard and three to five cloves of garlic.
  2. Grind the garlic cloves into a gruel.
  3. Mix them with other ingredients.
  4. Pour the mixture with five liters of warm water.
  5. Insist for three days.
  6. Strain and spray with the culture solution, including the soil around.

Dandelion juice is also not loved by black flies, so the weed is suitable for preparing the following successful remedy:

  1. Take one kilogram of dandelions.
  2. Soak them in a bucket of water.
  3. Pour one tablespoon of washing powder with one packet of red ground pepper there.
  4. Insist warm for a day.
  5. Strain, spray plants and soil.

You can also use onion husks and vinegar, which must be diluted with water so as not to burn the vegetation.

White insects

White midges on tomatoes are called whiteflies. They are infrequent guests in this culture, but no less dangerous. They are called miner flies because of the ability of individuals to instantly lay eggs. They are active insects, drinking juices from the leaf and stem of the plant, with a fast reproduction and resistance of eggs to chemicals.

Therefore, the complexity of the fight against them lies in the effect of the sprayed poisons only on adults, while the laid eggs are not affected and continue to replenish the insect population at the site.

Small white midges are afraid of folk methods. These include:

  1. Placing pest-affected seedlings in the cold. This can be a basement, where insect eggs, sensitive to low temperatures, will quickly die.
  2. Dill planting on the site. A large number of umbrella crops are attractive to ticks and parasitic beetles, which quickly eradicate flies. This natural selection in nature allows for safe pest control. The proximity of dill with tomatoes is always effective in protecting the tomato from insects.
  3. In greenhouses, the whitefly is removed using sulfurous smoke, which is used to treat the premises. It works flawlessly on adults and eggs.
  4. You can use a solution from available tools:
    • take 150 grams of garlic and peel
    • pour a liter of water
    • insist five days
    • dilute it in six liters of liquid, and spray the tomato bushes with the composition, especially under the leaves.
  5. The eggs of the midges are hatched with the foam of tar soap.

In the struggle for a harvest, using the knowledge of insects and methods of their extermination, victory will definitely be on the side of man.


Pest prevention

The white midge is an insect that is difficult to get rid of. You can fight it for a long time, which will negatively affect seedlings and crops. The use of chemicals is not always appropriate, especially if the gardener wants to get an environmentally friendly product. It is better to prevent a problem from occurring than to try to fix it later.

Preventive measures:

  1. Ventilate the greenhouse regularly, even in winter.
  2. Disinfect structures.
  3. Monitor the cleanliness of the site - remove plant residues and weeds in a timely manner.
  4. To constantly dig up the ground.
  5. Do not store compost in a greenhouse or greenhouse.


Preventive measures to combat leafhoppers

If the black midge attacks every year, and given its rapid fertility and unpretentiousness, it is necessary to take preventive measures to reduce the insect population.

  • Plant fragrant plants with a pungent and unpleasant odor along the tomato rows: garlic, onions, aromatic herbs. They repel pests.
  • Destroy all weeds in the greenhouse. Adult aphids live on grassy vegetation, flying over tomato bushes and laying eggs.
  • You should not dig up accidentally grown dill in the beds with tomatoes. Beneficial insects that eat aphids live on it, or rather on its umbrellas.
  • Aphids overwinter on fruit and berry bushes and trees, it is necessary to promptly remove the exfoliated bark and whitewash with lime. ·
  • Take action to combat ants.
  • After harvesting, destroy all vegetation from infested beds.

Some gardeners put containers with a vigorous infusion of onions and garlic in greenhouses, and mustard is planted along the rows.

If you strictly follow all the recommendations, you can quickly get rid of the black midge on tomato bushes. And this will not only save you from annoying insects, but will also help preserve a good harvest.


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