Wireworm: how to get rid of a potato plot, photos, means, fight on carrots


Plant pests

Wireworm - This is the larva of the click beetle, which can be easily distinguished from all other larvae by its rigid, wire-like body with shiny integuments. Potato wireworm causes damage to potato tubers comparable to that of the Colorado potato beetle.
But the presence of the beetle can be easily detected and immediately taken measures to destroy it, while the wireworm conducts its destructive activity underground, it is much more difficult to detect it and, accordingly, it is more difficult to fight it.

Description

What does the wireworm eat? Wireworms are polyphagous. They destroy seeds, seedlings, roots and even plant stems. Wireworms drill tubers and root crops, eating out passages in them and making them practically unsuitable for storage and consumption.

What does a wireworm look like? In length, the wireworm reaches from 10 to 50 mm. These larvae have a thin and hard body, the color of which ranges from dark brown to yellow. It is almost impossible to crush a wireworm. The developmental cycle of the nutcracker lasts 5 years, the wireworm larva develops for 3-4 years. In the first year, the larva feeds on the underground part of the plant, but does not cause significant damage to it. Wireworms become a dangerous pest in the second year of life, and in the fourth year the larva pupates, and in the spring an adult click beetle appears from the pupa.

Fighting the wireworm in the vegetable garden

How to deal with a wireworm

If other insects can be easily dealt with with insecticidal or acaricidal preparations, then fighting a wireworm will have to tinker with. How to kill a wireworm? The wireworm lives in the soil, and it is not easy to get to it. The fight against the wireworm on the site should be carried out by all possible measures in a complex, that is, using agrotechnical, mechanical and chemical methods.

Agrotechnical measures against wireworm include:

  • deep spring digging of the soil with careful destruction of larvae, pupae and click beetles, as well as weeds, in particular, rhizomes of wheatgrass and willow-herb;
  • compliance with crop rotation. For example, planting potatoes against beans and peas;
  • sowing green manure scaring away wireworms. Wireworm siderates such as mustard, lupine, vetch or alfalfa are effective;
  • sowing lettuce between the rows of potatoes, the roots of which are eaten by wireworms;
  • deep autumn digging or moldboard plowing of the soil before the first frosts, which reduces the number of wireworms by 50-90%.

Funds and preparations for wireworm

The wireworm's appetite can be spoiled by 3-4 superphosphate granules, treated with an insecticide, laid out in each well. For processing, wireworm preparations such as Actellik, Karate or Decis are used. Superphosphate is scattered in a thin layer and the granules are sprayed with a solution prepared according to the following recipe: Actellic (or other insecticide) - 15 ml, water - 80 ml, acetone - 200 ml.

When the number of wireworms cannot be regulated in any other way, it is necessary to resort to the use of the highly toxic drug Bazudin or Diazinon, which is slightly less dangerous for warm-blooded people. The drug Prestige from the wireworm and the Colorado potato beetle also reduces the number of pests by more than half, moreover, it is not as harmful as Bazudin. Wireworm provotox is not addictive to the pest, has low toxicity to humans, is harmless to earthworms and has a long duration of action.

In addition to the listed chemicals, wireworm control agents such as Grom-2, Kapkan, Zemlin, Aktara, Force, Metarizin and Dohlox are used. But whatever insecticide you choose, you can use it only in strict accordance with the instructions.

Fight with folk remedies

Since the use of chemicals in pest control can harm human health, it is advisable to resort to them as little as possible. It is better to use time-tested folk remedies for wireworm. The fight against the wireworm on the site is carried out by the following methods:

  • the best herbal remedy for wireworm is an infusion of celandine, which is poured over the soil on the site;
  • the aisles are sprinkled with wood ash, and from this the larvae of the click beetle die;
  • a good result is given by the introduction of nitrogen fertilizers containing ammonium into the soil, or irrigation of the area with ammonia water. Ammonium salts serve not only as a means of getting rid of wireworms, but also as nitrogen fertilization of root crops;
  • Wireworm lime introduced into the soil, used to deoxidize the soil, significantly reduces the number of larvae in it. In addition to slaked lime, coal ash, chalk and dolomite flour can be added to the soil once every 3-4 years;
  • one of the most inexpensive, but effective means is ground eggshells, which are scattered throughout the site;
  • for wireworms, baits are laid in the form of pieces of beets, carrots or cake in pits 7-15 cm deep, which are covered with a piece of plywood or iron on top. You can use under-ripened straw, grass or hay as bait. The wireworms that have accumulated in the pits are burned after 3-4 days. They begin to lay the baits a week or two before planting the roots and continue to lay them out throughout the summer. How to deal with a wireworm in the fall? The larvae are lured into pieces of manure or bunches of straw, spread out over the site, and with the first frost, the bait is collected together with the larvae and destroyed;
  • if you grow potatoes or root crops in alkaline or neutral soil, treating the wells from the wireworm before planting with a solution of potassium permanganate (5 g per 10 liters of water) at the rate of half a liter of solution per well will help you protect the plants. In acidic soil, the solution can burn the roots of the seedlings, so instead of treating the holes with a solution of potassium permanganate, put a handful of onion peels or pine needles in each.

Preventive treatment

To get rid of the wireworm forever, you need not only to destroy it, but also to carry out annual preventive measures that will no longer allow it to appear on your site. These activities include:

  • changing the place for growing crops at least once every 2-3 years;
  • carrying out an annual spring and especially autumn digging of the site to the depth of a shovel bayonet. The larvae raised from the depths of the soil during the autumn digging will die from the cold in winter, and spring tillage will clear the soil from the roots of the weeds that wireworms feed on;
  • loosening the soil on the site in May-June, so that the eggs of the nutcracker hit the surface, where they will die from the sun's rays;
  • regular weeding of the site, carried out to clear the soil of wheatgrass and other weeds. If the situation with weeds is critical, use Roundup to destroy it;
  • keep the site clean, remove grass and tops in autumn, in which the wireworm beetle likes to winter comfortably;
  • to scare away click beetles, you can grow marigolds, the aroma of which attracts pests, despite the fact that the juice of these plants is poison for them. The wireworm in the garden is afraid of legumes (black beans, soybeans, peas and beans), because bacteria that produce nitrogen live in their roots. To enhance the effect, you can sow phacelia with legumes, which neutralizes acidic soil;

  • The wireworm on the site does not like plants such as mustard, rape, buckwheat, spinach, sweet clover, rapeseed and oil radish, therefore, once every 2-3 years, in line with potatoes or root crops that the wireworm feeds on, you need to sow any of the listed cultures. In this case, the larvae will either die, or, having turned into beetles, will leave the site;
  • those who have used wireworm rye claim that it not only does not repel pests, but, on the contrary, attracts them. In addition, this crop takes too much moisture from the soil, so it is better to grow other plants as a green manure;
  • a very effective way to combat wireworm is to treat the surface of the site with table salt once every seven years (not more often).

Well, advice to those who have just begun to cultivate a plot of land: there are many wireworms in the virgin lands, so in the first years, until you select all the larvae and all the roots of weeds from the ground, it is better not to grow potatoes and root crops on the plot. Plant legumes, nightshades, or pumpkin crops for now.

How to get a wireworm out on a site

Wireworm in potatoes

If the issue with the number of nutcracker larvae on the potato site has become very acute, you need to get rid of the pest by all available means.

How to get rid of the wireworm on potatoes? We have described how to protect the garden from the appearance of a nutcracker on it with preventive measures, but if a wireworm nevertheless appeared on a potato field and began to spoil the tubers, immediately start laying out baits and traps around the site: put pieces of carrots and beets in a shallow hole and what Cover the trap. You can dig a half-liter jar with pieces of root vegetables into the ground, one for each m² of the plot, and cover them. After 2-3 days, remove the jars from the ground and destroy the larvae gathered in them.

Prepare an infusion of nettle, celandine, dandelion or coltsfoot according to the following recipe: take 100 g of celandine, coltsfoot and dandelion 200 g each, nettle 500 g - pour 10 liters of water and insist for 12 hours (celandine insist 3 days), after which the infusion is filtered and poured over the soil on the site.

In order that you do not have to fight an invisible pest, do not grow potatoes on the site for more than 2 years, alternate it with legumes, and treat the tubers with a solution of the active substance Prestige before planting, which will protect the potatoes not only from the wireworm, but also from the bear, crumbling and the Colorado potato beetle. And do not forget to carry out annual preventive measures that protect the garden from the wireworm more reliably than the most powerful drugs.

Wireworm in carrots

Wireworm infects many root crops, including carrots, however, it is undesirable to use toxic chemicals in the fight against the pest because of their ability to accumulate in root crops. It is difficult to do without insecticides in industrial areas, but in a private garden it is quite possible to cope with nutcracker larvae with non-toxic folk remedies. How to get rid of the wireworm in carrots? The following tricks can help you:

  • laying out pieces of potatoes, beets or carrots dug out in the pits. Check bait traps every 2-3 days;
  • soil cultivation on the site with herbal infusions;
  • planting between rows of marigold carrots, beans, peas, soybeans or black beans;
  • mustard from wireworm is used as a preventive measure. You can sow mustard on the site a month before planting or sowing carrots. The seeds are sealed to a depth of 1.5-2 cm.When the mustard grows to 15-20 cm, it is cut and embedded in the ground with a flat cutter or cultivator, after having treated it with Baikal EM 1, which accelerates fermentation, diluted with water in a ratio of 1: 500. After that, you can plant carrots, potatoes, beets and other root vegetables.

How to deal with wireworm in areas with other crops? The same as in a potato field or carrot beds.

Literature

  1. Read the topic on Wikipedia
  2. Plant Pest Information

Categories: Pests


How to get rid of a wireworm in a potato plot: effective methods of pest control and useful tips for gardeners

Plant pests

Most of the crops that grow in the garden are more or less exposed to the invasion of pests. The potato crop can be ruined by an insect such as a wireworm. Many people mistake it for a worm, but it is the larva of a click beetle. If a pest gnaws a potato, it is no longer suitable for storage.

Click beetles are found almost everywhere. In the spring they lay eggs, from which the larva emerges. It is she who causes irreparable harm to the potato crop. There is practically no soil that is not contaminated with wireworm. It is very important to control the population of insects in the garden and use all possible effective methods to combat them. The process of destroying the wireworm is quite long. It is almost impossible to do this in one go.


The reasons for the appearance of parasites

Pests can appear in the area where carrots are planted in several ways. Some types of pests appear as a result of improper agricultural practices, also associated with violation of the rules of crop rotation. Some types of insects simply fly from plantings of some vegetable crops to others, if there is no constant struggle with them. Prevention measures play an important role.


How to deal with a wireworm in the garden with folk remedies

  • Combating wheatgrass is the first rule. Click beetles and their larvae simply adore this plant due to its affinity with grains. So if you remove wheatgrass from the site , deprive your favorite shelter and treats of these pests.
  • You can protect the crop from the wireworm using special traps:
  1. Wireworm trap can be made with fishing line and potatoes. Potato circles with a thickness of 1-2 cm are strung on a fishing line at a distance of 10-15 cm and buried in a trench to a depth of 5-15 cm, depending on how warm the soil is. The warmer it is, the higher the larvae are. The end of the line remains on the surface. After 2-3 days, you will have to pull the line out of the ground along with the larvae of the click beetle. The same principle can be used by burying potatoes strung on a stick into the hole. After the above time, the sticks are removed from the ground and, along with them, the pests. In areas infected with wireworm, it is advisable to carry out such a procedure in several stages, before planting potatoes or any other crop.
  2. Themselves click beetles can be caught using jars of bait. To do this, you need to take cans with a volume of 0.5 liters. place pieces of potatoes, beets or carrots in them and bury the level with the ground at the rate of 10 traps per 1 hundred square meters. You can harvest beetles in 1-2 days.
  • Beetle larvae love to live in a pile of straw. or in manure. Therefore, this can be used to combat the wireworm. Spread a layer of straw, manure or just tops from plants on the surface of the site and after a few days collect everything and burn it.
  • If you have carried out one of the stages of the fight against the wireworm, it is better to fix the result as follows. When planting potatoes throw 1-2 beans into the hole with the tuber ... Beetles and their larvae do not like such a "product" very much. But the soil will thank you, as beans perfectly saturate the earth with nitrogen.
  • It is possible to get rid of the wireworm in a highly populated area or field, if previously planting it with legumes ... This option will completely help remove beetles and larvae from the soil.
  • This type of pest is also very dismissive of the following flowers and plants: mustard, rye, spinach, all legumes, buckwheat, rapeseed, marigolds, phacelia, dahlias.

Wireworms do not like these plants, therefore, by correctly distributing various crops on the site, you can insure yourself against the appearance of pests in the ground.

This is how the potato "visited" by the wireworm looks like


How to deal with a wireworm

It is easier to take measures so that this pest does not appear on the site, than then make every effort to get rid of it, wasting precious time on making some kind of traps. To avoid the appearance of a wireworm on the site, you must:

  • Observe the crop rotation... This is especially true when planting potatoes, which the pest is primarily interested in. Unfortunately, this is difficult to do in small areas.
  • Harvest in time without leaving it for the winter... This can deprive the pest of food.
  • Reduce soil acidity... The fact that the acidity of the soil is increased can be determined by which plants in the garden grow better. With increased acidity of the soil, plants such as sorrel, field horsetail, plantain feel great. In such soil, the larva of the click beetle also feels great.
  • Attract natural enemies of the click beetle to the sitesuch as birds. Wireworms are included in the diet of birds such as starlings, tits, crows, blackbirds, rooks, wagtails, etc. To attract them, it is enough to make and install several birdhouses on the site.
  • Destroy weeds... The clicker beetle eats the roots of wheatgrass and burdock with pleasure. In addition, he likes to hide in them. Therefore, burdocks and wheatgrass must be destroyed first.


How to deal with a wireworm: how to remove it at home

In the war against the parasite, it is important to observe the correctness and sequence of the following actions.

Tillage

It is necessary to liming the acidic soil. In moist soil, a high subacidity (acidity) is often revealed. It is determined without any analysis, relying on the presence of indicator plants in the garden:

  • mint
  • horse sorrel
  • plantain
  • horsetail.

It is recommended to add chalk, dolomite flour or wood ash to the soil, both on the surface of the soil, and specifically in the holes for planting.

Using traps

In this way, you can get rid of the wireworm from April to October. Gardeners came up with several types of traps:

  • Take a whole potato tuber ten days before planting. Soak it in an insecticidal solution for a day, then bury it in the aisle of plantings. Remove the root crop from the soil with the wireworm every three days. Repeat the action several times.
  • Put chopped vegetables (carrots, potatoes, beets) in half-liter jars and dig them into the aisles along the neck. Remove parasites every day.
  • Spread out wet straw in several places. After 5-8 days, remove along with the parasites outside the garden and burn. Put a fresh portion of straw in its original places.
  • Plant lettuce in the aisles of the potatoes. When it reaches 5-7 cm, remove it from the site along with the roots and destroy.
  • Chop a slice of carrots, potatoes or beets onto the stick. Dig in on the site to a depth of 8-10 centimeters. After two days, dig up the vegetable and peel the larvae. Then refresh the cut of the bait and place it back in the trap.

Mechanical control measures: how to get rid of in autumn and spring

It is important to dig the site 2 times a year - in late autumn and early spring. Kill all weeds, especially wheatgrass, as it is a favorite food for wireworms. After digging from the soil, select all its roots. If beetles, pupae and insect larvae are found, they should be destroyed.

The use of drugs for wireworm

Insecticidal drugs are used in extreme cases. Nitrogen-containing fertilizers are used more often. Carrying out their main function of improving the fertility of the earth, they simultaneously drive away the wireworm. These drugs include:

  • ammonium sulfate (add 30 g per 1 sq. m)
  • ammonium nitrate (20 g per 1 sq. m)
  • ammonium chloride (30 g per 1 sqm).

The drugs are injected into the soil, and the pests smell ammonia, which is unpleasant to them.

There are also special preparations for combating wireworms on sale:

  • Aktara - the product is dissolved in water to process potatoes before planting (1 g per 10 liters of water), or dry powder is added to the wells.
  • Prestige is applied in a similar way.
  • Bazudin is a more potent drug than the previous ones. Diazinon acts as an active substance (dangerous to humans and animals). The soil should be treated with Bazudin only if absolutely necessary (15 g per 10 sq. M) and in strict accordance with the instructions.

Also, highly toxic potent drugs include:

  • Initiative
  • Zemlin
  • Thunder
  • Stormbreaker-2
  • Medvetox-U
  • Provotox.

Chemicals are dosed into the potato groove, as indicated in the instructions for use. After some time, they dissolve, and a protective contour is formed on all sides of the plant.

Folk remedies

Homemade wireworm disposal methods are more gentle on the soil and vegetables.

Mustard

The pest does not like this plant. The mustard from the wireworm must be sown closer to autumn, so that it has time to grow at least 10 cm. Then it is cut and dug up with the soil so that the stems and roots are in the soil. In the spring, you need to repeat all the steps, and also bury the mustard. In the process of stem rotting, bitter essential oils are released, which repel the pest.

Herbs

An effective herbal decoction against wireworm includes:

  • celandine 100 g
  • mother-and-stepmother 200 g
  • nettle 500 g
  • dandelion 200 g.

Pour the specified number of plants with a bucket of boiling water and leave to infuse for 2 days, then treat the soil with it.

Pour wood ash 1-5 centimeters thick between the rows of potatoes. This neutralizes the acidity of the soil.

Potassium permanganate

For sowing potatoes, first make a solution of potassium permanganate (2 g per 10 l). Fill in the area where the ridge will be located. Water abundantly so that a layer of soil 15-25 cm thick is saturated with moisture. Also, the solution is used when planting potatoes - 5 liters of liquid per 1 sq. m area.

Plants protectors

The wireworm does not live where such plants grow:

  • mustard
  • rape
  • rape
  • oil radish
  • sweet clover
  • black beans
  • beans
  • soy
  • peas
  • buckwheat
  • spinach.

It is recommended to grow these crops on the site for 2-3 years. The larvae of the wireworm beetle die, and the nutcracker itself leaves for places more suitable for its existence.


Fighting wireworms in autumn

In the autumn, for digging the soil, it is advised to add 1 liter of wood ash for each square meter of potato plot. When digging the soil, the larvae, by the way, can be partially removed.

It is also useful to add ammonium sulfate to the soil in the fall in the amount of 2 tbsp. spoons per square meter. Ammonium sulfate kills the larvae plus enriches the earth with nitrogen.

Green manure helps to improve the soil, get rid of weeds and pests. For potatoes, mustard is an excellent green manure. We ourselves have been sowing mustard on the potato plot for several years now and are very satisfied! If a in the fall, after the potatoes, plant mustard, by the spring the soil becomes looser, there are much less weeds, and the question is, how to deal with a wireworm on potatoes, ceases to be relevant. Checked! We have described our experience here.

Chemicals. After harvesting, before digging the site, granular insecticides are introduced into the soil. You can combine pesticides with fertilizers. To do this, superphosphate is distributed in a thin layer on a flat surface covered with a film and sprayed with pesticides ("Karate" or "Decis"), dissolved in water (80 ml) with acetone (200 ml). Dried granules are brought in for digging. If for some reason this could not be done, the granules treated in this way can be added to each well in 5 g at the time of planting the potatoes.


Wireworm in potatoes: how to get rid of

It is quite difficult to get the clicker beetle out of the garden, but you need to fight the wireworm on the potatoes without delay. It is practically impossible to exterminate every single bug. But you can significantly reduce their number. The very first thing you can do is various traps.

These disposal methods are fairly simple to perform:

  1. Between the potato bushes, you need to plant, for example, corn. These bugs love to feast on it. After a while, you can pull out the corn bushes with the clicker.
  2. Put some hay or potato tubers in the ground, add water and bury. After a couple of days, you can dig up and extract the accumulation of parasites from there.
  3. Be sure to loosen the soil around the potatoes twice a week after planting. Insects get to the surface and die from the sun's rays or from birds.
  4. A known method is a sweet surface. Spread sweet sugar syrup or honey on the potato leaves and wait for the result. The beetles will quickly flock to the tasty smell and stick.

Folk remedies

It is not enough when such remedies help, but it is still necessary to try before starting with drastic measures.

  1. Potassium permanganate. Water the solution once or twice a week. This will destroy some of the larvae.
  2. Onion peel. During planting, put the husk in each hole and drip it.
  3. Eggshell. It needs to be crushed and scattered over the beds.

Folk remedies do not always help in the fight against a whole family of beetles, but they can be used as a prophylaxis to protect the field from the invasion of parasites.

Chemical methods

This method is dangerous for humans, as it is poison. Preparations must be diluted strictly as directed in the instructions. These include:

  • Taboo
  • Commander
  • Provotox
  • Bazudin
  • Trap
  • Initiative
  • Zemlin
  • Thunder-2
  • Prestige
  • Actellic
  • Nemabakt.

When using Prestige, it is important to observe safety measures. Despite the high price, gardeners take it very well, because it really works and helps to quickly destroy the wireworm. It is necessary to dilute the contents with water in the same amount as indicated on the package, and thus spray the plants. For a better result, place the tubers in the solution and wait a while, then they are planted in the ground.

Provotox is a proven product, produced in the form of friable granules. You need to do this: pour poison over the beds and wait for the result from 12 hours to 3 days. The drug gets inside the insect, affects its nervous system and paralysis occurs.

Nemabact is completely harmless to humans and animals. Safe for tops when sowing. Once inside the beetle, the poison completely destroys it from the inside. You cannot dilute the solution in advance. Protect your eyes while working.

All drugs are similar to each other, they act destructively on the insect. But it should be remembered that you do not need to abuse them, since wireworms become resistant even to the most powerful pesticides.

The click beetle is the worst enemy of plants that bear fruit. Every gardener should know the most basic measures for the prevention and elimination of these pests. If you regularly and persistently take care of the vegetation, follow all the rules, you can not only reduce the number of voracious beetles, but also get rid of them completely.


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