Fruit

Wormy apples: how to fight, what and when to spray, processing rules

Anonim

Many people are interested in the topical issue of how to deal with wormy apples. To cope with the problem, you can choose an effective remedy. Most often, chemical and biological preparations are used for this. In addition to fixed assets, it is permissible to use folk recipes. In order not to run into a problem, you must follow the rules of prevention.

Common causes of pests

People often wonder why wormy fruits appear on a tree. This symptom is indicative of pest damage to the crop. Codling moth infestation is a common cause of problems. This insect is a butterfly with a maximum length of 20 millimeters. Caterpillars of these pests are especially dangerous. Butterfly flight begins in June and lasts 1 month. During this time, insects lay green eggs on leaves and fruits. During the season, the codling moth can hit up to 5 apples. If the apple falls, the parasites return to the tree again.

What contributes to the reproduction of the pest

Active summer of butterflies is observed only in warm weather. This happens at an evening temperature of at least + 15-17 degrees. The appearance of pests is prevented by strong rains and winds. In other cases, they affect trees.

Signs of tree infection

When a tree is infected, wormholes appear in the fruit. This symptom indicates the presence of parasites. The main one is the apple codling moth. It is she who leads to the defeat of the fruit.

Crop Danger

Codling moth brings very significant harm. It can hit up to 5 apples. Each butterfly lays 1 egg in different places. Their maximum number can be 120 pieces. On a tree, the number of affected apples can reach 30%.

Worms get into the fruit through damage to the skin or a recess for the petiole. They absorb the pulp, which causes the apple to rot.

The damaged area also attracts wasps. Rot creates favorable conditions for the reproduction of fungi and bacteria.

Means to fight the worm

Many people are interested in how to spray an apple tree. To avoid active reproduction of larvae, you can use chemical, folk, biological remedies.

Chemical

Optimal options are organophosphates. They should be used during the appearance of caterpillars from eggs. To avoid damage to the tree, it is recommended to strictly follow the instructions on the package. The best options for drugs are Tod, Calypso, Atom. Personal protective measures are recommended when using chemicals.

Folk

There are many simple and effective remedies that are harmless to insects. The most effective substances include:

  • birch tar;
  • decoction of wormwood;
  • tansy infusion.

For a better hold, it is recommended to add crushed soap to the spray solution.

Biological

The most effective biological substances include the following:

  1. Lepidocid - helps to cope with the massive damage to apple trees by caterpillars.
  2. Fitoverm - is the most popular remedy. It can be used at any time. The drug is safe for people and crops.
  3. Bitoxibacillin - the composition is allowed to be used only during the growing season.

Processing by seasons

Many people wonder when to process apple trees. Measures should be taken taking into account the seasonal factor:

  1. In the spring, before the buds swell, it is recommended to remove old nests, clean the bark and cut the branches.
  2. During the swelling of the kidneys, remove parasites manually or shake the branches. It is also worth treating apple trees with copper sulphate or using Nitrofen.
  3. Use Bordeaux mixture at the stage of bud formation.
  4. After flowering, collect adults by hand. It is also worth cleaning the bark and the near-trunk area.
  5. In the summer to control the condition of the trees. Of no small importance is the removal of carrion, caterpillars and other parasites.
  6. In autumn, remove trapping belts, whitewash the tree, trim.

How to get rid of a worm

What to do when worms appear? This question is relevant for many gardeners. There are many effective methods that help solve the problem.

In the trunk of an apple tree

In the bark of trees, larvae lay sapwood, bark beetles, subcortical leafworm. They make holes and lay their eggs in them. Then larvae appear in the structure. To eliminate parasites, you need to do the following:

  • open the affected area;
  • draw insecticide into the syringe and inject into the wound;
  • treat the bark with a balm based on clay, lime, mullein, copper and iron sulfate.

In flowers

Apple flower beetle lays eggs in flowers. The larvae gnaw through the buds, which leads to crop loss. To deal with the problem, it is recommended to follow these rules:

  • use trap belts;
  • shake adults onto a tarp - they do it in the morning;
  • whitewash trunks with lime;
  • treat plants before bud break - for this you should use Iskra or Karbofos.

Prevention measures

To avoid problems, it is recommended to do the following:

  • collect caterpillars by hand;
  • use trap belts;
  • shake off parasites;
  • remove the trunk circle;
  • remove affected areas.

Worms quite often infect apples. This creates a lot of problems for gardeners. To cope with parasites, you need to process plantings in a timely manner.