Effective remedies for the Colorado potato beetle (TOP 10 active ingredients and 35 recommended drugs) for 2022.

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Olga Polyakova 06/01/2020

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The Colorado potato beetle is capable of completely destroying most of the potato crop in days, and sometimes hours. And not only him. Being a natural “consumer” of nightshade crops, this insect is capable of infecting other plants in the absence of its main goal. Among them may be: tomatoes, physalis, eggplants, peppers. Let's look at the best remedies for the Colorado potato beetle.

Content

• 1. “Coragen Expert Garden” based on CHLORANTRANILIPROLE from the Colorado potato beetle
• 2. “Aktara” and others based on TIAMETHOXAM from the Colorado potato beetle
• 3. “Commander” / “Tanrek” / “Corado” / “Confidelin”, etc. based on IMIDACLOPRID from the Colorado potato beetle
• 4. “Stozhar, RP”
• 5. “Inta-Vir” / “Shar Pei” / “Alatar”, etc. based on CYPERMETHRIN
• 6. “Decis-Expert” based on DELTAMETHRIN from the Colorado potato beetle
• 7. “Aria” / “Monarch” / “Regent” based on FIPRONIL from the Colorado potato beetle
• 8. Inorganic insecticides for the Colorado potato beetle
• 9. Organophosphate insecticides for the Colorado potato beetle
• 10. “Zhukoed, SK” / “Zhukobor-Extra” / “Batraider, SK” - multicomponent preparations for the Colorado potato beetle
• As a conclusion

There are a huge number of drugs on the market in bright packaging and with sonorous names. How not to get lost in such diversity and choose effective remedies for the Colorado potato beetle.

To carry out quality processing, it is important to understand two main points:

1. what potato treatments are carried out;
2. what drugs are used at this or that stage.

So, in order. Potatoes will be treated with pesticides against pests at the following stages:

• before landing (pre-landing preparation);
• vegetative development;
• and before storing.

In this material we will consider preparations and their active ingredients for treating potatoes and other plants of the nightshade family against the Colorado potato beetle at the stage of VEGETATIVE development.

Effective products against the Colorado potato beetle for treating potatoes at the stage of vegetative development are made based on the following active ingredients:

1. chlorantraniliprole (drug "Coragen");
2. thiamethoxam (drugs "Aktara", "Kaiser", "Ephoria", etc.);
3. imidacloprid (preparations “Confidelin”, “Tanrek”, “Commander”, “Zubr”, “Korado”, “Imidor”, “Konfidor”, “Iskra Zolotaya”, etc.);
4. acetamiprid (drugs “Stozhar”, “Mospilan”);
5. cypermethrin (preparations “Inta-vir”, “Cypermethrin”, “Kinmiks”, “Iskra-Double effect”, etc.);
6. deltamethrin (preparations “Decis Expert”, “Atom”, “K-Obiol”, etc.);
7. fipronil (drugs “Aria”, “Monarch”, “Regent”, etc.);
8. organophosphorus compounds (OPCs) based on malathion (preparations “Karbofos”, “Alatar”, “Iskra-M”, “Aliot”, “Phenaxin”, “Fufanon-Nova/Expert”, etc.) or pirimifos-methyl (drug " Actellik") are currently not used or are rarely used against the Colorado potato beetle;
9. aversectin (biological product “Fitoverm”, etc.), is currently not used against the Colorado potato beetle due to low efficiency;
10. inorganic substances (for example, diatomite - the drug "Ecokiller", tobacco dust - the drug "Tabazol", etc.).

Drugs can be single-component (one active ingredient) or multi-component (two or more active ingredients).

Features of pests and reasons for their appearance

The fight should begin by getting to know the enemy. Knowing the life cycle, vital functions and weak points of the insect, you can clear it from your summer cottage much faster and more efficiently.

The Colorado potato beetle gets its name from its origin. For the first time, a striped and so insatiable insect was recorded in the USA, Colorado, where it destroyed huge potato plantings. Then, with plants and fruits of vegetable crops, it spread far beyond the continent.

The pest belongs to the family of leaf beetles, has small sizes (up to 12 mm in length) and a characteristic bright color of the back with longitudinal alternating stripes of black and pale orange.

Insects have wings, thanks to which they quickly move over fairly long distances, “conquering” new areas of land.

Beetle larvae pose a particular danger because they are voracious and can destroy most of the crop in a short time.

The life cycle of Colorado potato beetles is quite simple:

1. The fertilized female lays small, yellow or bright orange eggs on the underside of the leaves - 25-80 eggs per clutch (from 500 to 1000 pieces per season).
2. The larvae hatch in about 5 days. They look like short, thick worms. The body is brown, salmon-pink or crimson with rows of black dots, the head is black. Over the next 15-22 days, the larvae feed and grow, undergoing periodic molts. Then they dive into the ground and experience the pupation stage, which lasts 20 days. The time spent in the larval and pupal stages is highly dependent on air and soil characteristics (temperature and humidity).
3. The formed beetle crawls out or remains underground until spring.

When manually collecting beetles from plants, adults, caterpillars of different ages, and eggs are immediately removed from plants (usually the leaves on which clutches are found are simply torn off)

Insects feed on the soft part of the leaves, eating everything except the veins. They especially like potato tops, but they are also not averse to eating the foliage of tomatoes, eggplants, bell peppers and other crops belonging to the nightshade family.

Damage to green seedlings leads to almost one hundred percent loss of yield, so control should begin as early as possible. In this case, insects should be destroyed at all stages of development - eggs, larvae, adults.

Colorado beetles that have settled in a summer cottage can destroy not only the potato crop, but also threaten eggplants, tomatoes and other nightshades.

The Colorado potato beetle is especially dangerous for young plants. It quickly destroys their delicate foliage completely. Having noticed a parasite on plantings that are in the initial stages of the growing season, you need to take the most active measures to destroy it. Experienced gardeners try not to slacken efforts of this kind throughout the entire gardening season in order to prevent the proliferation of pests and prevent them from overwintering in the soil. This allows you to at least partially protect the crops that will be planted next year.

"Coragen Expert Garden" based on CHLORANTRANILIPROLE from the Colorado potato beetle

Description

There are several dozen methods of combating the Colorado potato beetle, however, most of them are quite labor-intensive and ineffective.

Colorado beetle

The saddest thing is that the natural enemy of the beetle, the doryphora fly, was never able to leave Colorado , unlike its victim, which perfectly adapted to other climatic conditions.

Colorado potato beetle larvae

In addition, since the beetle accumulates solanine in its body, which is rich in the stems and leaves of many nightshades, it becomes inedible for most birds and reptiles. Of all the birds living in a temperate continental climate, only guinea fowl can eat beetles.

"Aktara" and others based on TIAMETHOXAM from the Colorado potato beetle

“Commander” / “Tanrek” / “Corado” / “Confidelin”, etc. based on IMIDACLOPRID from the Colorado potato beetle

"Stozhar, RP"

"Inta-Vir" / "Shar Pei" / "Alatar" etc. based on CYPERMETHRIN

Folk methods of struggle

Enterprising domestic summer residents are actively fighting the pest using simple homemade remedies. Some of them have little effect, others (especially with a small number of insects) are quite successful.

Recipes:

• Finely chopped wormwood is poured into a bucket and boiled water is poured to the top. Leave to infuse for 2-3 days, filter and spray the potato bushes;
• rub a piece of laundry soap, add 2 liters of sifted wood ash to the mixture. Fill with water (10 l), stir until the soap dissolves, then treat the plantings leaf by leaf;
• The dangerous pest is successfully fought with the help of calendula, marigolds, and dill. These plants are planted along the edges of potato beds, in rows. The smell of flowers and umbrellas repels insects from the crop (and not only from potatoes);
• sifted ash is poured into the soil around the potatoes;
• infuse aqueous mixtures and make decoctions with tobacco, hot pepper, leaves and stems of burdock, and chopped garlic. Spray the beds twice a week all season long;

To treat the tubers, they use potassium permanganate and copper sulfate, familiar to every gardener, and spray the plantings with a solution of boric acid with the obligatory addition of shavings of laundry soap (for better adhesion).

"Decis-Expert" based on DELTAMETHRIN from the Colorado potato beetle

Precautionary measures

Before using any of the chemicals, the farmer needs to protect himself: put on a protective suit, prepare rubber gloves, goggles, and a respirator. Do not dilute the working solution by eye. It is necessary to follow the dosage recommended in the description of the product (instructions).

For your information! Working solutions of insecticides should be prepared immediately before using chemicals.

It is prohibited to cultivate the beds 25 days before the start of the harvest period. Toxic substances included in insecticides are retained in the green mass of plants and tubers for up to two weeks.

"Aria"/"Monarch"/"Regent" based on FIPRONIL from the Colorado potato beetle

Inorganic insecticides for the Colorado potato beetle

For example, “Ecokiller” is a series of innovative preparations against insect pests. The line of drugs includes separately “Ecokiller for Colorado potato beetles”. The basis of the drug is DIATOMITE (diatomite powder), which has abrasive and absorbent characteristics. Its tiny particles attach to the surface of the insect and absorb lipids (fats) from the outer chitinous layer of the shell. As a result, the protective film that retains water is destroyed, and insects (adults, nymphs, larvae) die from dehydration.

Development cycle

The pest loves to feast on potatoes at any stage of its development. As soon as the potato tops emerge from the ground, bugs emerge from the ground along with them and immediately begin to feed on the seedlings and mate. If the females managed to mate in the fall, then in the spring they begin to lay eggs on the underside of young leaves. In one day, the female can lay up to 80 light orange eggs, from which larvae hatch in 5-17 days at favorable temperatures. Over the summer, the female is capable of laying up to 700 eggs.

The larvae have 4 instars, separated by molts.

• At the 1st instar, the larvae gnaw out the lower pulp of the leaf;
• In the 2nd, they gnaw out all the pulp of the leaf, leaving thick veins.

Larvae of these instars can be seen in colonies on the tops of potato shoots. Already with further development (3rd and 4th instar), the larvae scatter and move to neighboring plants. Intensively eating foliage, after 2-3 weeks they burrow into the ground to a depth of 10 cm for pupation. After 2-3 weeks, the resulting pupa crawls to the surface, where they continue further development, unless, with the onset of autumn, they enter diapause until next spring.

To overwinter, beetles go into the soil to a depth of 30-50 cm, where they are not afraid of any methods of combating them.