Cockchafer (Khrushka) is a common pest of greenery. In late spring, they can often be seen in the trees. During the flight, the insect buzzes loudly and can be easily identified from this sound. Adult individuals feed on the leaves of trees in gardens and parks. Maybirds larvae eat the roots of plants, which leads to their death.
A three-year larva is able to completely destroy the root system of a young tree in an hour. Taking into account that one female of lumps lays up to 70 eggs, the appearance of these insects on the site threatens with almost complete destruction of greenery.
What does the Maybug look like? We all know well from childhood. Someone saw them live, and someone in the pictures to the fairy tale "Thumbelina".
The body of the beetle is barrel-shaped, black or brown-brown, elongated at the back. The length reaches 3.5 - 4 cm. It is distinguished from other insects by antennae with long setae.
The larva of the cockchafer, also known as the furrow, has a thick white body, bent in the middle part, three pairs of legs and a large brown-colored head.
A beetle pupa is more like an adult, but with shorter wings.
Reproduction of May beetles and growth stages
The development cycle of the May Beetle lasts five years. In late May, adult individuals crawl out of the ground to the surface, females mate with males and lay about 70 eggs into the soil at a depth of 15-20 cm. After that, females die. After a month and a half, small white larvae appear from the eggs. They spend four years in the ground, continuously feeding on plant roots. In the summer of the fourth year, the larva turns into a pupa, and a year later adult individuals appear from the ground.
What harm does the cockchafer and its larva bring?
The adult beetle does not have time to cause great harm, since it lives only about two months. The larvae cause much more damage to the plants.
If plants one after another begin to wither for no apparent reason, the larvae most likely live under its roots. They can be found by digging a hole in the ground depth on the spade bayonet.
How to distinguish the Maybot larva from similar
Before you start fighting with the larva of the May beetle (Melolontha sp.), You should make sure that it is she, and not other insects. Most often confused larvae:
Below is a comparative photo of the larvae of the May beetle and the bronze:
Looking carefully, you can see the difference between them. There is a difference in the places where the larvae accumulate. So, immature individuals of the May beetle feed on the roots of plants, respectively, and live there. Bronze larvae have weaker jaws, live in compost heaps and feed on dead organic matter.
Even lower is a comparative photo of rhinoceros and deer larvae:
In the compost heaps the larvae of the May beetle does not occur, as they feed only on live roots.
Folk ways of dealing with the May beetle and larvae
In order to successfully fight the Maybug, you need to know how it behaves:
- In the early morning, the crinkles are usually not mobile and can be easily shaken from the trees onto a specially laid litter. Collected pests are then destroyed.
- In the dark, beetles flock to the light, so they can be collected in light traps. It must be prepared in advance - any shallow container is coated with a sticky substance and a light bulb is placed in the middle. In the evening, the trap is put on the street. Not only May beetles stick to such traps, but also scoops butterflies, the caterpillars of which destroy the planting of cabbage, beets and green tomatoes.
- Starlings also will not give up the fleshy delicacy, so a birdhouse on the site is necessary.
- The ground under the trees is sown with white clover or lupine. These plants enrich the soil with nitrogen, which discourages the larvae.
- Land under planting sprayed infusion of onion peel or pink solution of potassium permanganate.
Common hedgehogs are great lovers of the larvae. If the barbed little family settles nearby, the number of pests will begin to decline rapidly.
Also, the larvae are harvested by hand while digging the soil.
Chemical control agents
All of the above control measures are effective only with a small number of pests. If your landing is rapidly dying, to get rid of the Maybug is time to turn to chemical means. How to use them, and which drugs to them include:
- "Zemlin". Refers to contact and intestinal insecticides. The active ingredient is diazinon. It affects soil pests, maintaining its effect for two months. It is introduced into the soil during planting and in the fall with the preventive purpose after harvesting.
- "Nemabakt." The drug belongs to the biological and is completely safe to use. It colonizes the soil with a predatory nematode and special bacteria that enter the body of the larvae through the respiratory organs and destroy it. Then the nematode leaves the empty shell and goes in search of new victims. In winter, these worms fall into hibernation, and with the arrival of heat they come to life again and begin to feed. The product is diluted with water and applied to the pre-moistened and loosened earth.
- "Fix it." Analog "Zemlin" based on diazinon. The drug is available in the form of granules, which increase its duration. It is introduced into the soil in early spring and is valid throughout the season.
- Aktara. Means with active ingredient thiamethoxam. A day after entering into the soil in it all the pests die. Can be used at any time of the year and in any weather. High humidity is not an obstacle and does not affect its properties.
- "Antihrusch." Available in the form of a concentrated emulsion with two active ingredients - imidacloprid and bifenthrin. The tool has a prolonged action, high efficiency, resistant to precipitation does not cause addiction. Acts on both adults and larvae.
- "Basudin". The drug based on diazinon has a long-lasting effect and is economical: a 30-gram sachet is enough for processing 20 square meters. The tool is mixed with sand in a liter jar and add a little under each bush or with a tuber when planting.
- Vallar. The preparation is diluted in water and the roots of the seedling are dipped into it before planting. Thus the larva dies quickly when eating roots.
To effectively fight the Maybug, it is necessary to use a set of measures to protect plants. It is even better to combine protective measures with preventive ones. Thus, it is likely to bring the larvae to the site along with the manure, because in the first year of life they feed on not rotten organic matter. Before placing manure in the beds, it is necessary to sift it in order to prevent pests from entering it. If Khrushchev is found in neighboring areas, it is better to replace the manure with compost or liquid nettle fertilizer, in which there are guaranteed no larvae. Compliance with all these measures will help protect your planting and preserve the crop.