General information

What are the visible differences between the larvae of the May beetle and Medvedka

One of the dangerous pests are the bear and the cockchafer. The perfect place for their life - well-harvested, humus-rich soil, as well as irrigated land. In order to protect your possessions from these pests, you need to have an idea about the difference between the larva larvae and the May beetle, as from the photo they can be confused. It is also necessary to know what measures need to be taken if the presence of pests has been confirmed. This is what the article will be about.

Description of the bear and peculiarities of its reproduction

In the cold season, Medvedki hibernate in the soil at a depth of 25 cm. As soon as the soil heats up 10 ° Сthey become active and start damaging the plants. In the afternoon, the bears are underground, and in the evening they come to the surface or fly to the light. These insects are different from other following physical features:

  • The body is rather large in comparison with other beetles (4 cm). On top of the body color is dark brown, and the bottom is brown-yellow. The beetle is covered with velvety filaments.

  • Mouth pointing forward, short antennae.
  • Wide elytra reach half the length of the abdomen.
  • Normally developed wings, even in a calm state, protrude from under the elytra.
  • The front legs resemble spades. With their help, the insect creates whole caves in the roots.
  • The following pairs of legs have spikes.
The breeding season for females falls on May. On average, one adult individual lays up to 500 eggs at a time.

Most often, the bridge masonry becomes a pile of garbage, manure, or simply loose soil. After that, the "mother" remains near the nest, thus protecting its offspring. Fetal development continues until 20 days, and the larvae themselves remain in place 30 days. On average, they grow into adults after wintering in the summer of next year.

How does the larva bear

After laying eggs, the offspring appears after 3 weeks. Visually, the bear looks disgusting, the description of the larva is quite specific, but if you know it, you can effortlessly identify the insect and immediately begin to get rid of it. They look like adults, but their body size reaches 3 cm, it is covered with durable shell, while the wings of the larvae are absent. To turn into a full-grown adult larva passes 4 stages of development on average, it lasts up to 2 years.

During this time, the insect changes several times. The first food is the remains of the egg shell, and then they begin to dig tunnels and other passages for the extraction of food.

Breeding features of the May beetle

The breeding season of the insect falls on the summer. After mating, the female lays eggs in the amount of 70 pieces., average bookmark depth is 15 cm. This process takes a lot of power from her, and most often at the end she dies.

Description of the grub beetle larva

After 35 days, the larvae appear from the eggs. Their body has a whitish yellow or reddish color. The body is thick and soft, divided into several segments and has three pairs of limbs.

On the head are the upper jaws of the oral apparatus. During the first 3 years of life, the larva develops and hibernates in the ground. In winter, the insect sleeps deep enough in the ground, and with the first warming it rises to the upper layers of the soil. The first year of life the larvae feed on humus and tender grass roots. Then their main food becomes the roots of woody and herbaceous plants. During feeding the insect can creep up to 30 cm.

As well as adults, they greatly harm the development of plants and sometimes even lead to their death.

Let's sum up

Consider what the main difference between the larva and the beetle Medvedka, so as not to confuse them and properly apply the methods of dealing with them.

Beetles live 3 years longer than the bears. In addition, the latter are more thermophilic and therefore penetrate deeper into the ground during the cold season, which means that they are more difficult to detect during digging. Beetles prefer strawberry roots or vegetables, and bears prefer plants of the family of the nightshade. In front of the May Beetle there are 3 pairs of legs and mouth, and a bear has paws in the form of shoulder blades.

How to deal with the larvae

Knowing about all the harm caused to the plants by the bears and the May beetles, as well as their larvae, it is necessary at the first sign of their presence to begin control and prevention measures.

The struggle must be carried out comprehensively, it is better to do this several times a year. Today there are many traditional and modern ways. pest control: scaring, trapping, loosening the beds, destroying the nest and destroying the finished means. Consider a few most popular:

  • Agrotechnical. It consists of thoroughly digging up the soil in spring and autumn to a depth of approximately 15 cm. It helps to destroy the tunnels and makes it difficult for pests to move. In addition, in this way it is possible to destroy the laying of eggs and larvae.
  • Dung traps. It is known that these insects love dung and arrange wintering in such places. You can make holes in the autumn about 50 cm in size and fill them with manure. After the first frost everything is unearthed and scattered on the ground. Thus, the pests will quickly die of cold.
  • Oil or soapy water. In the detected passages drip oil or pour water with soap from a hose. For 10 liters of water, it is enough to take 50 g of soap.
  • Beer trap. A glass jar is instilled into the soil, so that the neck is at ground level. Beer is poured into it at 1/3 capacity. Put a plate on top to leave a 15 mm gap. This smell very much attracts insects.
  • Scare. This is done by placing on the site of coriander, garlic, chrysanthemum and pine needles. Putting fish into each well during planting, when decomposed, will begin to emit a peculiar odor that this insect does not like.
  • Physical barriers. It is possible to protect plants from pests by planting them in cut rubber tubes of a certain diameter. They should rise above the ground by 3 cm. Rhizomes can be secured with a nylon mesh in several layers, while its edges should be above the soil.

To prevent this, you need to make some effort, and then the land will thank you for a good harvest.

What does a bear look like?

Medvedka is one of the worst pests in our garden. People call it “earthen cancer”. Most likely, because of the solid front back, which looks like a shell of crayfish. The forelimb insect, like a mole, makes its way underground. Some have so called Medvedka - “cricket-mole”. It flies well and swims, runs fast on the surface of the earth, but mainly lies beneath it, creeping out at night, its characteristic lingering harsh sounds create very awesome sensations, from which another popular name is “top.

By and large, for the larva larva is like sharpening: cabbage, potatoes, cucumbers, onions, eggplants. It settles in the soil, with good access to the sun, which means that all plants that will shade its hole (the size of a chicken egg) face destruction. The depth of the mink is about 10-15 cm, so some gardeners, digging up the soil in the fall and spring, hope that there will not be this pest on their section. How to get rid of medvedki that you need to take? First you need to study the insect itself, to understand who we are dealing with.

The common bear is common throughout the European part of Russia. The most favorite habitats are wet, loose soils, along the banks of rivers and streams. In the garden, her favorite place will be planting cabbage, manure, compost heaps. You can find out what you have in the plot where the Medvedka settles along winding, dug up areas of soil, after rain in late May - early June. And, of course, on the plants cut at the base. Medvedka's nest sticks out slightly from under the ground, resembling a simple hummock. Only here within a radius of 20 cm nothing grows from this hummock. The insect often conducts its nest, whether everything is in order with the laying of gray-yellow eggs smaller than the size of a pea.

Description of the larvae

At the end of the mating season (from May to early July), the insect lays in the nest from 50 to 500 eggs of future larvae. Externally, the eggs resemble grains of millet, they are dark brown in color, about 3.5 mm in length. Under favorable wet conditions, after 9-18 days the larvae appear from the eggs. The larva of the bear looks outwardly like an adult, only without wings. The first food larvae larvae are the remains of the shell and the salivary discharge of the mother on the walls of the nest. The full maturation of the bear comes only in a year, and before this period the larvae grow and clean up your garden.

From the first to the fourth stage of growth, the larva grows from 15 to 35 mm, it feeds on other small insects, earthworms, and before the emergence of new plant shoots the fruits left from autumn. An interesting fact is that the fecundity of a bear decreases if there is no cereal in her diet.

Differences from the May beetle

To distinguish a bear from a beetle is quite simple. The larva of the Khrushchev or Cockchafer looks like a white caterpillar with a size of up to 2-2.5 cm and a thickness of up to 6-8 mm. The survivability of the beetle's offspring is large, from 3 to 4 years, they prey mainly in the underground storerooms. During this time, can significantly harm your landings. The body of the larvae is soft and unpleasant to the touch. The larvae climb into the ground at 60 cm in depth, which means that when digging the ground, you can not find them.

In front of the Maybot larva there are 3 pairs of legs, covered with fine hair. There is a kind of oral apparatus with very strong jaws, which are able to cope even with the thick roots of trees. Nevertheless, they prefer something tastier: the roots of strawberries and various vegetables. On the sides, her body is covered with brown small dots. The back of the beetle larvae is colored slightly darker than the rest of the body.

Pest control

The consequences of being a bear and a cockchafer in your garden are enormous and the principles of sabotage are similar. From that there are some common methods of dealing with these pests. Consider how to effectively get rid of these insects.

Agrotechnical method. After harvesting and in early spring, it is necessary not only to loosen the ground, but to dig deep into it, in order to disrupt all the underground moves of the bear, to destroy its egg clutches and larvae. To get rid of the May beetle, it is necessary when digging to destroy the larvae that fall into it. And in May and early summer, loosening of the ground will violate the conditions of molting and pupation of the grub larvae, as a result of which they will die. It should be known, however, that in the dry summer the larvae of the May beetle will lie down half a meter into the ground and this method will not work.

Planting in places where pests of particular plants are found. Medvedku repels smell marigold, plant this plant around the perimeter of the garden. The infected field can be planted with peppered lupine larvae, since other weeds will not grow here, the beetle larvae will have to eat only the roots of lupine, which, in fact, is poisonous for them.

Watering the site with a special solution. The area inhabited by Medvedka should be watered with infusion of onion peel or onion waste (900-1000 g of husk, pour 10 liters of warm water, leave for 5 days). Before watering, the infusion is diluted with water 1: 5 and watered by plants 2-3 times in 5-7 days, preferably after rain or organized watering. An infusion of chicken droppings (2 kg per 10 liters of water) also helps the bear. After dilution with water (1: 5), dry soil is watered with it.

A solution of potassium permanganate (5 g per 1 liter of water) will save you from the gluttonous larvae of the May shrimp. It should be watered them bushes of plants. Another effective way to water the beds from the larvae of the beetle, prepare a solution: for a bucket of water, 200 g of ordinary salt and 2 tbsp. l ammonia. During the flowering period is used for the prevention of pests.

Catching adults. One of the most environmentally friendly ways - to lure, catch and neutralize. Medvedok vymanivayem on vegetable oil. In the hole, which left Medvedka, pour a couple of drops of vegetable oil, then pour water (no more glass). The bear will crawl on the smell and die. May beetle flies well, often at night, so you need to make a light trap for it. We hang out the light bulbs, and below them there is a container with water and a few drops of kerosene. Beetles fall into the water when they fly into the light. If you do not want to wrestle with traps, then in the morning just shake the beetles from the branches on the bedspread and burn them or pour boiling water over them.

We use helpers in the garden. Some gardeners have noticed that if a couple of cats live on the site, then the plants remain in place, because the cats catch everything that moves, including the bear. Starlings will be good assistants in the fight against the May beetles and their larvae. They hung a birdhouse and can not worry: it is proved that one family of singing destroys up to 8 thousand. May beetles and larvae. Even ordinary chickens will help you to destroy the larvae of the May beetle.

Chemical attack. If you decide to fundamentally fight pests and use chemicals, remember that you can use products from the garden only 30 days after the last treatment. From the bear and its larvae are used Vofatoks, Medvetoks-U, Thunderbolt. The drug “Regent” is mixed with boiled buckwheat chop and beer droplets (for smell).

From the honey beetle and the cockchafer, the plants and potato tubers are processed with Prestige. For the soil from the larvae of the May beetle use Medvetoks U, Thunderbird, Gromoboy2. The garden is treated immediately after flowering with the drugs: Aktara, Arrivo, Decis, Sherpa, Match, Konfidor, Konfidor Maxi.

Prevention has always been one of the most effective methods of pest control, look at your garden. Root out old stumps, remove rotten and rotten boards and beams from the ground, if any. Bear and cockchafer, their larvae are harmful and dangerous insects. They multiply very quickly, so pest control must be balanced, clear and well thought out. So you will save your long-awaited harvest and protect plants and trees from damage.

Video “Getting rid of the larvae of the May beetle quickly”

To clean your garden or vegetable garden from this annoying pest, do not be lazy to watch the following video presented below.

Where can I find larvae larvae

In winter, the larvae hide deep in the ground. Their activity is manifested with warming. As the soil warms up, the larvae approach the surface from a two-meter depth. Comfortable for them is considered the temperature of 12 degrees. In May, the bear period begins. After fertilization, the female lays eggs at a depth of 20 cm. In the sandy soil she can burrow to a depth of 70 cm. If the eggs are laid in moist fertile soil, the female makes moves only 5 cm from the surface.

Often larvae larvae can be found in manure heaps. They also choose wet loose soil. Here comes a sufficient amount of air and light, which contributes to good development. A clean and well-kept garden is the optimal place for the existence and development of the larvae of the bear. Around their nest, they destroy almost all cultures, causing significant damage to agriculture.

What does the Maybot look like?

In May, when stable heat is observed, the female of the May beetle digs into the ground to a depth of one meter. Here she arranges a nest, laying translucent eggs. After 20 days the larvae appear from the eggs. Their appearance is reminiscent of white thick caterpillars, on which rings are clearly visible. With the development of the size of the larvae increases. In doing so, they move closer to the surface. The larva of the cockchafer develops over several years.

Larva of the May beetle and Medvedka

When growing up, the beetle larva acquires a yellowish tint. The insect resembles a fat caterpillar with a brown head. The larva has no eyes. Her gnawing apparatus is developed quite well. However, the Maybot larvae are not as voracious as the larvae of the bearfish. It can be said that with small quantities, they practically do not harm plants.

Prevention

As a preventive measure, it is recommended to dig a garden twice a year. The depth of digging should be more than 20 cm. If nests of pests appear, you can destroy them and destroy them.

Often gardeners fertilize the land with manure, scattering it around the garden. Along with him on the plot can get eggs Medvedka. That is why it is recommended to fertilize in the fall. In winter, the larvae on the surface of the earth cannot survive.

A good result is shown by the protective beds where garlic is planted. It is also recommended to throw it in the hole with other cultures. In addition, the pests are scared away from the land plot flower beds with chrysanthemums, marigolds, calendula.

Larva of the May beetle and Medvedka: description

The appearance of the grub beetle larva:

  • Reach size from 4 to 7 centimeters in length,
  • They have a rather massive, elongated body,
  • Body color is light yellow-milky, covered with sparse hairs,
  • The tail portion is slightly enlarged and darker in color.
  • The head is rounded red or yellowish,
  • На голове два коричневых усика и небольшие жвалы, помогающие копать почву, помимо перемалывания пищи,
  • Личинка совершенно слепая, поскольку ведёт подземный образ жизни,

  • Имеет шесть цепких лап,
  • По бокам есть ряд маленьких отметин коричневого оттенка, внешне похожих на глаза,
  • At rest, the body of the larva becomes C-shaped.

What is the difference between them Khrushchev and Medvedka?

The main differences between the larvae of the May beetle and Medvedka are:

  • The bear has no stage of the worm, the pupa. She immediately "born" a small insect. The body is brown in color, darkening over time. In the final phase, the development of the wings, genitals,

  • The larvae of the cockchafer are caterpillars of white color with pronounced rings. They are gradually increasing in size, reaching six centimeters in length. They have a twisted ring body shape. The head is brown in color. Have three pairs of paws,
  • The larvae of the bear hurt immediately after the appearance, the larva of the brittle as it matures,
  • The larvae of the May beetle love warmth and therefore they climb deep into the soil, unlike the bears, because of this the fight with them is much more difficult,
  • Khrushchev prefers the roots of vegetables, trees, strawberries and strawberries, and Medvedka loves solanaceous, melons and legumes,
  • Medvedka makes laying of dark brown eggs numbering from 50 to 500 pieces, Khrushchev lays up to 70 transparent eggs,
  • The larvae of the bearfish develop during the year
  • The size of the Maybot's larvae reaches from 2 to 2.5 centimeters, and in a bear, up to 3.5 centimeters,
  • Bear larvae prefer to live in the most warmed arable soil. Khrushchev larvae are not so fastidious to the ground.

If the imago has a rather modest diet, then the larva of the May Beetle has a great appetite:

  • Having sufficiently strong jaws, they are able to eat solid vegetable food, sometimes they can gnaw even the strong roots of old trees,
  • In the early stages of their development, they mostly eat the small roots of plants and trees (cherry, larch, birch, spruce, oak, cedar, etc.), as well as vegetable humus,
  • As soon as the cold comes, the larva rushes deeper into the soil (up to a meter), waiting for cold times, and with the onset of spring it moves again closer to the surface. Here she can feed on the roots of black currant and other plants, including vegetable,
  • Upon reaching two years old, it uses tree roots, bulbs, potato tubers, turnips, etc.

How to detect?

Where the larvae of the May beetle live:

  • As well as adults, the habitats choose river and forest tracts, coastal valleys, meadows and agricultural areas,
  • The optimal favorable environment is a wet and warm soil, rich in nutrients (humus) and fairly easy to loose,
  • In the summer between the rows of potato and corn crops, the larvae only begin to emerge from the eggs and are in the soil at a fairly small depth, no more than 20 centimeters,
  • In a rather hot season, with infrequent rainfall, the larvae penetrate into the soil more than 50 centimeters,
  • The favorite habitat of the larvae are thickets of weeds and wild bushes, places under the rhizomes of various trees and rotten old stumps.

Proven ways to deal with Medvedka and May beetle:

For those who, adhering to the principles of ecological farming, do not dig up the soil, the question will be topical: how to get rid of a bear without destroying the soil layer? In this case, you can do the following:

  • Instead of a mullein fertilizer, use bird droppings, which scares the bear with its smell from the beds.
  • Medvedka scare marigolds and small-colored chrysanthemums, so-called. "Oak trees". Planted around the perimeter of plants and put a little chopped greens in the wells when planting seedlings.

When is the time to apply chemistry? In agriculture, it is believed that the threshold of harmfulness, after which there is an economic sense in insecticides, begins with the number 1 individual per 1 square meter.

But usually, the owners of the dacha plots, who have felt about themselves, what means a bear and who have seen how much damage she can bring, do not wait for the pest to spread strongly and start treatments earlier.

Soil granules and root treatment with substances poisonous to the insect are used to combat the Medvedka. It is necessary to use preparations according to the instruction.

  • Poison bait (Medvetoks, etc.) - they are buried in the ground to a depth of 4 cm. When digging the beds, in the planting furrows or specially dug trenches and shed with water. Insect dies after eating the bait.
  • Poisonous granules (Basudin, Thunder, etc.) - close up in the soil, pre-mixed with sand. Medvedka dies, touching the granule.
  • Prestige - before planting, the roots of seedlings are dipped into the preparation solution for 6-8 hours.
  • Aktar - before planting the roots of plants are dipped into the preparation solution for 2 hours. Portions of the solution (1.5 g of the drug) is enough for 250 plants.

Fighting larva larvae

In early June, the bear begins to build a nest, which then lay eggs. The nest can be seen on the surface of the earth with the naked eye. It resembles a hummock around which, within a radius of several tens of centimeters, the plants are dead and dried.

Ripping the ground in this place can be found nesting chamber with a lot of yellowish eggs the size of a little smaller than a pea. Medvedka often visits her laying, looking after the eggs - turns them over so that they will not moldy. Mechanical destruction of the nest at this time is the main and most effective way of dealing with the larvae.

A month later, in early July, the larvae hatch from the eggs and crawl under the ground in all directions. They love to live in greenhouses, as there is a warm and humid microclimate. Little bears, unlike adults, cannot fly, otherwise they would quickly spread throughout the district.

The larva bear resembles an adult insect and leads a similar lifestyle. She will become an adult in a year, having exchanged five times. But until that time, it will destroy many plants, among which there will be many cultivated ones.

Not less than an adult individual is harmed by a little bear, methods of dealing with this dangerous insect must therefore be combined. The fight can be mechanical and chemical.

In the southern regions, bears lay eggs until September. To fight the larvae that have settled on the site in a better radical way, that is, chemical. For destruction use poison bait:

  1. Phenoxin, Medvetsid, Medvetoks, Thunder - poured into the hole and cover the top with soil from birds. Young bears will gather for an attractive smell for them and taste poisonous granules.
  2. Boil half a kilogram of any cereal, add a tablespoon of "fragrant" vegetable oil (its smell attracts bearies) and a vial of regent, karbofos, metaphos or zinc phosphide. Spread the bait under the ground throughout the site on a tablespoon on each tab.

How to distinguish a bear from a cockchafer?

It is easy to distinguish an adult Medvedka from a Khrushchev or May Beetle. To do this, just look at the photos of these insects - between them there is nothing in common.

Medvedka and Khrushcha differ in lifestyle, so they have a different body structure. Medvedka feeds on plant roots, for which digs passages underground. Therefore, the front pair of limbs has changed in it, turning into an excellent tool for digging. The adult cockchafer lives on the surface of the soil, eats leaves of trees and grass.

The difference between a bear and a cockchafer is caused not only by a different way of life. These insects belong to different groups (orders). The cockchafer enters the order of beetles or beetles and has the appearance typical of this group of insects.

Interesting: the beetles or beetles - the largest detachment of living creatures on earth, which includes almost 400 thousand species. They make up 40% of all insects.

Medvedka belongs to the order Orthoptera. Her closest relatives are not bugs, but grasshoppers, crickets and locusts. A characteristic feature of the representatives of the squad are elongated hind legs, which is not the case with beetles. Despite the underground way of life, elongated legs have been preserved in the bear.

The larva of the bear and May beetle - the difference here is even stronger than in adults. The larva's larvae hatching from the egg is an exact copy of the adult insect and differs from it only in size. With each molt, the larva grows larger until it reaches the size of an adult polar bear. Then it will become a full-fledged adult specimen or, as entomologists say, “imago”.

The larva of the cockchafer lives in the soil, eats, like the bears of all ages, plant roots. Despite this, its appearance is radically different from the medvedka.

The larva of Khrushchev doesn’t even look like its adult form - the May beetle. It is worm-like, looks like a white thick caterpillar with an orange head. Its length is about 2 cm, thickness is up to 1 cm. In the front part of the body there are three pairs of small legs.

So, now you know how to cope with the earth cricket and you can protect your crop from it.

This is also interesting!

Medvedka is a malicious pest and unpleasant guest for every gardener. The more difficult its destruction is that the insect lives under a layer of soil and is not always visible even to an experienced gardener. And sometimes the site owner can not immediately understand what happened to the attack with the plants, why they suddenly die and dry.

Egg-laying bears

After the mating season and the pairing of two insects, the female begins to make a nest. The structure is a rounded cave with a diameter of about 10 cm. There is such a cave in the soil, at a depth of about 15 cmand contains up to five hundred eggs.

To prevent mold, the female periodically turns the clutch over, inspects and makes a selection. Eggs are slightly oval balls, similar to grains. Their color is beige or brownish with a touch. From the side of the medkovka stonework it looks like an enlarged ant.

The insect does not make nests deeply due to the fact that they receive enough heat through the land layer. Therefore, to detect laying is not difficult, just walk around the site in search of characteristic hummocks. Larvae hatch at 14-21 days.

It can be said that the larval form of a polar bear is similar to long-bodied six-legged spiders or mutated crickets. Larvae size up to 15 mm. The structure of the front legs (they turned out) allows you to rake the ground in front of you.

In general, the larva differs little from the adult specimen, except in size. Active development includes five molts, after which the larva is considered mature and capable of reproducing offspring.

The larval form does not develop in one season, so it hibernates in this form until the next spring next to adult pests. From the thickness of the fat layer will depend on whether the insect will suffer the winter cold. Frost she does not like much. Also, cold affects further fertility.

Differences between the larva of the beetle and the capustanine (Medvedka)

With the formation of the Maybot larva, it resembles a caterpillar. It has a white color, 2 cm length and 8 mm thickness. Barrel caterpillar covered in dots brown. The back is darker than the front. And on the front there is an oral opening and hairy small legs in the amount of 3 pairs.

Appearance larvae Medvedki diametrically opposite. After appearance, it is a small bug, increasing with each subsequent molt and acquiring ever greater similarity with an adult individual.

Ways to destroy and fight the larvae

Because of its voracity and the ability to dig moves and burrows in any weather, the fight against the pest must be immediate, otherwise the damage from the activity of the capustan will be enormous.

  • Spring and autumn digging for the destruction of masonry and the collapse of underground tunnels.
  • Planting odorous plants (chrysanthemums, marigolds).

In the insect mink drip a few drops of growth. oil and immediately followed by a glass of water. Literally in a couple of minutes, the pest will come out and die.

Photos of the larvae of the bear and May beetle

Granular modern insecticides attract Medvedka, she eats poison and dies. It is imperative to collect all the insect corpses, otherwise the bird may be poisoned, pecking the cabbage tree.

With proper persistence you can get rid of the pest in the garden. It will not be very easy and simple, but worth it, definitely.