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How effective are Colorado potato beetle insecticides?

How effective are Colorado potato beetle insecticides?


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Some insects are dangerous inhabitants of potato plantations. The rate of reproduction, the amount of crops eaten and the harm they can bring can cause a decrease in the yield and even its death.

To protect crops from uninvited guests, chemical insect control agents are used - insecticides that kill the pest, while remaining safe for humans.

Insecticides are pest control chemicals - preparations made from chemical compounds that are used to kill insects that damage potato plantations.

Types of insecticides

Modern insecticides against the Colorado potato beetle are divided into several types, depending on the route of penetration of the drug into the body:

  1. Contactagents affecting insects by direct contact chemical compounds with his skin.
  2. Intestinal - killing an insect after entering its body with food.
  3. Systemic - are absorbed, moving through the vessels of the plant, and poison the insect that this plant eats.
  4. Fumigants - preparations in the form of a gas or vapor that destroy the insect through the tracheal system. Mineral oils and silicates contained in fumigants aimed at disrupting the functionality of the pest's respiratory system.

Characteristic

These drugs are characterized by a quick continuous action, high efficiency and low toxicity to humans. The characteristics of insecticides against pests are such that they have the ability to quickly degrade in the environment.

In addition, insecticides for insects are characterized by a low consumption rate. Insecticides against the Colorado potato beetle should be selected with great care.

These funds have only one drawback.: with the systematic use of one group of drugs, the destroyed pests develop addiction to insecticides. Colorado beetle quickly adapts to various chemicals. In this regard, it is worth changing insecticides from the Colorado potato beetle.

In order to avoid resistance, it is necessary to alternate drugs of different groups.

Act

By the nature of the action of insecticides, they are classified into:

  1. Continuous action preparations, which are used to destroy various types of pests.
  2. Selective drugs that are used against a specific insect.

In the group of selective agents, insecticides are:

  • nematocides - destroy nematodes (worms);
  • acaricides - only kill ticks;
  • insectoacaricides are harmful to both ticks and other harmful insects.

Waiting period

Waiting period - the time interval between the last processing of potatoes insecticide and harvesting, during which drug residues reach a safe level or are destroyed.

The waiting period is due to:

  • the duration of the preservation of the applied preparation;
  • insecticide resistance;
  • toxic and hygienic properties of the product.

Insecticides and waiting times are also affected by:

  • climatic and soil conditions;
  • form of the drug;
  • characteristics of the active ingredient of the insecticide.

From all that has been said, it follows that the waiting period for each individual insecticide is different. The exact time is indicated by the manufacturer on the packaging of the drug or in the instructions attached to the product.

Spraying

When spraying insecticides on a potato field the following rules must be remembered:

  1. The drug must be mixed thoroughly. Usually the first step in preparing a solution is to dilute it in a small amount of water. (approximately 1: 5).

    After that, water is added to the "mother liquor" to the required concentration, which is indicated by the manufacturer of this or that drug.

  2. The sprayer should deliver a fine and (necessarily!) Constant spray. A broom is not suitable for this procedure, colorful spray and other improvised mechanisms. The drug should be sprayed over the plant evenly, in a small drop and not drip onto the soil.

    Processing is carried out from all sides of the plant, including on the inner sides of the leaves, where insects usually lay eggs and larvae develop. The lower part of the stems should also be sprayed.

  3. Spraying begins from the moment of full germination. Usually, early and mid-ripening potato varieties need to be sprayed 2-3 times, late-ripening varieties are processed 3-4 times.
  4. Repeated measures for the processing of potato bushes are carried out immediately after how insects will reappear. Upon contact with poison, most pests die, but some simply weaken, so after a while they are ready to feed on potatoes again.

    Due to the fact that the pest becomes addictive to the drug of the same type, it is not recommended to re-treat it with the same remedy.

Treatment

The choice of the method of insecticide treatment of potato bushes with insecticides due to the characteristics of the insect.

As well as the form of the drug, the presence of automation for the introduction of funds, sanitary and hygienic and economic requirements and conditions.

In addition to spraying, potatoes can be treated with insecticides in the following ways:

  1. Fumigation.
  2. Application to the soil with granules or powder.
  3. Aerosol treatment.
  4. Seed processing.

About what fungicides and herbicides are, how to use them and what they are for, there is detailed information in our articles.

Consumption rate

For each type of insecticide to kill harmful insects, as well as for the funds of different manufacturers, their own consumption rate of the drug is determined. Read on for the insecticide consumption rate below.

The most popular types of insecticides for protecting potatoes have the following consumption:

Colorado potato beetle

  • sumi-alpha - 0.15 kg (l) / ha;
  • actellic -1.5 kg (l) / ha;
  • kerber - 0.1-0.2 kg (l) / ha;
  • senpai - 0.15-0.2 kg (l) / ha;
  • arrivo - 0.1-0.16 kg (l) / ha;
  • tanrek - 0.1-0.2 kg (l) / ha;
  • commander - 0.1 kg (l) / ha;
  • bulldok - 0.15 kg (l) / ha.

Colorado potato beetle insecticides are available at your local specialty store.

From aphids

Aphid insecticides are as follows:

  1. Bi-58 - 2-2.5 l / ha.
  2. Danadim (seed planting) - 2-2.5 l / ha.
  3. Shar Pei (seed planting) - 0.48 l / ha.
  4. Vitan - 0.48 l / ha.
  5. Rogor-S (seed planting) - 2-2.5 l / ha - one of the most effective means against aphids.

Aphid insecticides are available at specialty stores.

From slugs

Insecticides for slugs are as follows:

  • SluzneSTOP - 0.3 kg / ha;
  • Slug-eater - 0.3 kg / ha.

From beetle larvae

Insecticides from beetle larvae are a small assortment, eg:

  • Fastak - 0.07-0.1 l / ha.

From caterpillars

See below for caterpillar insecticides:

  • Zolon - 1.5-2 l (kg) / ha;
  • Confidor maxi - 0.03-0.04 l (kg) / ha.

Conclusion

Using insecticides will help get rid of insects which can cause irreparable harm to both plants and tubers and maintain a high and high-quality potato yield.

Useful video!


Watch the video: Colorado Potato Beetle Organic Gardening Pesticide Alternatives Colorado Potato Beetle (June 2022).


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