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Varieties of pests that damage the roots and ground part of tomatoes

Varieties of pests that damage the roots and ground part of tomatoes


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Tomatoes grown by gardeners and farmers are selective hybrids and do not have their own natural defense mechanisms against pests.

Therefore, in order to preserve the harvest of tomatoes, you need to know how to identify the parasite and what to do to eliminate them from the site. Further, it is described in detail about each of the pests of tomatoes, and visual photos are also posted in the article.

The susceptibility of tomatoes to parasites

Tomato pests can be roughly divided into two categories... The first is those who damage the ground part of the plant: its leaves, fruits and stems. The second category is those who lead to the death of the plant, harming its root system.

For novice gardeners, it is important to read not only the theory about the pests of tomatoes in the greenhouse, but also to see their photos, and also to find out how to treat plants.

Types of parasites that damage the ground part of the seedlings

Whitefly

Small (up to 3 mm) insect with a yellow body and white wings. Most often it affects tomatoes grown in greenhouses. In addition to the tomato, it feeds on other plants, including weeds. For tomatoes, it is dangerous because it is a carrier of various viruses that infect the plant.

Besides the pest lays microscopic eggs on the back of the leaf... After a few days, caterpillars emerge from the eggs, feeding on the sap of the plant and emitting sticky molasses, on which a sooty fungus settles. Tomatoes stop growing, leaves and flowers fall off.

Most often, the whitefly enters the greenhouse with infected seedlings. To determine whether a plant is infected with whitefly, it is enough to inspect the underside of the leaves. A shiny coating is a sure sign of infection.

Whitefly control methods:

  1. Treatment of infected plants with chemicals, for example: "Pegasus", "Confidor", or "Actellik".
  2. The biological method of controlling parasites on seedlings is the use of the macrolophus bug, lacewings or ladybug larvae.
  3. Use in the greenhouse glue traps that you can prepare yourself using castor oil or liquid paraffin.

Slugs

Mollusks of brown color, 4-5 cm in size. They leave behind a characteristic trace - mucus. Appear in high humidity conditions, feed on leaves, fruits and stems of plants. They are carriers of infections.

The main sign of the appearance of slugs is the presence of large holes and mucus on the leaves and fruits.

How to get rid of slugs:

  1. Mechanical collection of the parasite is the most time consuming but most effective method.
  2. Treatment of soil and leaves with chemicals that include metaldehyde.
  3. The biological method is soil cultivation with a biological additive with a parasitic nematode.
  4. The popular way is to spray tomatoes with a solution of ammonia (4 tablespoons of alcohol in a bucket of water) or a decoction of onion peels every 3-4 days for 2 weeks.

Spider mite

A small (no more than 1 mm in length) insect, which can be noticed after its activity affects the state of the tomatoes. Plants grown in greenhouses are most often infected with the parasite.... The insect feeds on plant juices, which leads to its depletion and death.

After being hit by a spider mite, white dots appear on the back of the leaves, the plant is shrouded in a cobweb, the leaves curl and fall off.

Most often, spider mites enter the greenhouse along with infected seedlings or soil. The source of the parasite can also be other plants planted in the greenhouse with tomatoes. For the winter, the insect hides in the ground and becomes active the next year..

Spider mite control options:

  1. Chemical treatment... The method is appropriate for significant infection and in the absence of fruits. Effective drugs against spider mites include: "Anti-tick", "Agrovertin", "Flumite", "Neoron".
  2. Using the natural enemies of the spider mite - lacewing, insects phytoseiulus and metaseiulus. Insects are sold in nurseries and quickly deal with the pest.
  3. With a small lesion, use a folk remedy - treatment with an alcohol solution (2 tablespoons per liter of water), soapy water or onion infusion.

Scoop

A gray butterfly laying eggs on the inside of the leaf. The damage to the plant is caused by the caterpillars of the scoop of light green color, which eat the fruits of tomatoes and leaves.

Scoop butterflies are attracted by plant nectar, therefore, the main reason for the appearance on the site is the presence of flowering weeds.

The most effective method to get rid of the moth caterpillars is the use of chemicals. Examples of drugs:

  • "Danadim";
  • "Zolon";
  • biological products "Bitoxibacillin";
  • "Lepidocide".

Traditional methods suggest spraying plants with infusions with a pungent odor:

  • infusion of onions or garlic;
  • powder from tobacco powder.

Bug bugs

Insects, ranging in size from 5 to 20 mm. They feed on the fruits of tomatoes, injecting their poison into them. As a result, vegetables begin to fade, white or yellow spots appear on them.

The main reason for the appearance of the pest is the proximity to fields and meadows, the presence of a large number of weeds in the garden.

It is possible to fight with bugs - shit bugs with folk remedies, if the lesion is small, or with chemicals, if the infection is extensive. Folk remedy - spraying plants with a solution of dry mustard (300 grams per bucket of water).

The drugs Aktara, Chlorophos, and Phosphamide are among the effective chemicals for fighting the bug bugs.

Root-damaging insects and methods of dealing with them

May beetle - Khrushch (larvae)

Large white worms with three pairs of paws. The larvae move underground and eat roots, which leads to the death of plants.

Beetle larvae most often appear in soft, fertile soils, which are low in nitrogen. Nitrogen is the environment in which the larvae cannot live.

How to get rid of the beetle larvae on the site:

  1. To increase the concentration of nitrogen in the soil by planting cruciferous plants near tomato beds: cabbage, white clover, radish, radish.
  2. Dig deep into the soil and collect the larvae by hand.
  3. Attracting birds to the site - natural enemies of beetles and larvae.
  4. A radical method is the treatment of the roots of seedlings with chemical agents "Antichrushch", "Aktara", "Prestige".

Wire worm

One of the most dangerous pests of tomatoes... This is the name of the larva of the click beetle. The parasite is like a yellow worm that is very difficult to crush. The larva's cycle is 5 years; two and three-year-old individuals are especially dangerous. The parasite feeds on the roots, but it can penetrate into the stem of the plant, causing its death.

Wireworms usually enter the greenhouse together with soil and manure. Therefore, when updating the soil, it is necessary to check it.

Getting rid of the wireworm is quite difficult and requires an integrated approach to pest control.

  1. Planting next to the beds of tomato white mustard and legumes (beans, beans).
  2. Reducing soil acidity by adding slaked lime to the soil.
  3. Before planting, treat the soil with chemicals "Baduzin", "Provotox" or "Diazonin".
  4. Use biological agents that contain bacteria and nematodes that attack the wireworm. These drugs include: "Nemabakt" and "Metarizin".

Medvedka

Large insect, 5-6 cm long. Tomatoes are harmed by both adults and larvae.... Bears dig holes in the ground, disrupting the root system of tomatoes, as a result of which the plant dies.

The pest most often lives in fertile, moist soil. You can determine the presence of an insect by digging up the ground.

It is necessary to fight the bear as early as possible, until the insect multiplies to an amount capable of destroying the entire crop. It is very difficult to deal with a pest, so it is necessary to alternate between different methods.

  1. Make a dung bait in the fall so that the larvae deposited in it die in frost. In the spring, the dung bait is installed in several places, and then destroyed along with the insects that have climbed into it.
  2. Plant marigolds around the tomato garden, the smell of which scares off the bear.
  3. Destroy the nests of the parasite during deep digging of the site.

Chemical preparations for fighting the bear:

  • "Medvetox";
  • "Bankol";
  • "Grizzly".

Tomato pest control methods can be divided into chemical, folk and biological. When choosing the final option, it is necessary to take into account not only the type, but also the number of pests.

It is important to remember that the chemicals are faster and more effective, but after processing, vegetables should not be eaten for 10-20 days. Biologics do not act so quickly, but they also cause less harm to fruits, which can be consumed in a week. Folk remedies are safe for human health, and their main drawback is their frequent use.

We offer an informative video about tomato pests and how to deal with them:


Watch the video: 5 Best Companion Plants for Tomatoes for Maximum Yields and Healthy Plants u0026 2 Plants Tomatoes Hate (June 2022).


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