About the raspberry beetle (raspberry) and other pests: methods of control and prevention

This year the raspberry bushes suffered greatly from small brown bugs. The neighbors said it was a raspberry beetle. To save the harvest, I treated the bushes with the biological preparation “Guapsino”; I didn’t want to use “chemicals” on the site. I repeated the treatment as indicated in the instructions and a week later the pest disappeared. Next season I will cover the bush with lutrasil: they say it helps against many pests.

Stem gall midge

Gall midge is the formation of new growths on young shoots.
The growth is parasitized by small organisms that poison the shoot and lead to its death. The larvae themselves are almost invisible to the naked eye, their size is only 1-2 millimeters. In spring, the growth cracks, and small mosquitoes form from it, which continue laying eggs on neighboring branches. Insects tolerate winter well and do not die out. The defeat of gall midges in the initial stages may be invisible, but with the onset of August the growths already become visible. The only sure way to combat the parasite is to trim the visible growth. The entire growth is cut off from the shoot, and the cut site is filled with garden varnish. Instead of pitch, you can use hydrogen peroxide, clay, or oil paint. Even the affected shoot, from which the growth has been cut, continues to grow and bear fruit. Stem gall midge is not considered a dangerous disease; it is easily cured and does not cause consequences.

May beetle: how to fight?

In the garden

What to do if the cockchafer is infested in the garden? First of all, deciduous trees (birch, sea buckthorn, plum, apple, cherry) and bushes (strawberries, lilacs, currants, etc.) will have to be protected from encroachers on the garden.

In the mornings and evenings, beetles gather on vegetation for a meal; most often the weather is calm and cool.

It is during this period that you can check all the trees and bushes, shaking off uninvited guests to the ground.

Use, when beetle activity is practically zero, wide sheets of film and long poles for more convenient collection of pests. The insects found can be used as fish bait or poultry feed. Otherwise, it is better to trample or burn them.

Scientists' observations have shown that an average family of starlings is capable of catching about 6-8 thousand adults and larvae of cockchafers in just one nesting period. Attracting such allies will significantly facilitate the fight not only against Khrushchev, but also other harmful insects.

How to fight the cockchafer in the garden? There are plants whose aroma or substances secreted by stems and roots cause persistent hostility in insects. For chafers, these include mustard, marigolds, beans, turnips, elderberries, lupines, white clover and various varieties of cabbage.

If you plant any of these plants in the garden near trees or bushes that are attractive to the pest, then the cockchafer is unlikely to settle in your area.

To prevent beetles from laying eggs in your garden, place various obstacles on the ground. These can be walnut shells, hard tree bark, eggshells, shavings or straw. Thanks to such a protective layer of mulch, the beetles will not be able to easily and quickly penetrate underground, and will most likely go in search of better places for future offspring.

From folk remedies, onion solution can help, which is periodically watered on the soil in places where pests appear. You will need up to 1/3 of onion skins per bucket of water. The solution will be ready for use after 4-5 days. Then it can be diluted again with water. It is not necessary to water the plants themselves with the solution - just the soil.

In strawberry

How to get rid of the cockchafer on strawberries? Especially to repel the cockchafer, plantings of berries such as strawberries, raspberries and strawberries are prepared and sprayed with various solutions.

For 10 l. of water you will need to dilute 1-3 tablespoons of ammonia or 15 drops of iodine per 10 liters.

It is optimal to spray garden bushes 2-3 times at intervals of a week. The weather should be warm and not rainy.

Harmful insects on raspberries

Many gardeners grow raspberries on their property; usually several types of plants are grown at once. No matter what varieties grow, pests will still find something to profit from. Many beetles eat raspberries; most often, certain species can be found on raspberry bushes.

Raspberry beetle

White insects on raspberries with a dark head are nothing more than the larva of the raspberry beetle. Larvae appear in early summer from eggs laid by adults. They do a lot of harm; their diet consists immediately of leaves, and then of buds and fruits. It is the raspberry beetle larva that is one of the main culprits in reducing the yield; it simply eats away the flower from the inside.

Adults are no less dangerous; a larva that has overwintered in the ground appears with the first rays of sunlight in the form of a beetle:

• small size, up to 4 mm;
• the body is oval, slightly elongated;
• color gray.

Raspberry stem fly

The insect itself is harmless to the bush, but the deposited larvae can cause a lot of trouble. The insect lays eggs in May-June, and the hatched larvae begin to destroy young shoots. Starting from the axils of young leaves, the young growth gradually moves along annual branches, gnawing entire tunnels there. After this, more than 80% of the affected branches die, and with them the crop.

You can recognize a raspberry fly by the following external signs:

• small insect size;
• body color is grayish;
• there are two pairs of wings;
• loves to relax on raspberry bushes.

You can fight the insect and its larvae in different ways. They are treated with Bordeaux mixture, Iskra, Confidor, Fitoverm.

Raspberry beetle and raspberry stem fly

Raspberry bud moth

Red beetles on raspberries are quite voracious; they eat out the bud and penetrate inside the stem, destroying the raspberry tree almost completely. This pest is the larva of the kidney moth, which raises its offspring in this way.

The insect has this appearance:

• small butterfly;
• wings dark with light spots;
• the body is slightly oval, elongated.

Stem gall midge

The appearance of this pest can be recognized by the characteristic swellings under the bark of annual raspberry shoots. There is no doubt that this is where the cluster of orange caterpillars, which have hatched from the laid eggs as adults, will be located.

Small brown bugs are very fond of raspberry bushes; just during the flowering period, it is time to lay eggs, from which the pest will develop in the future.

Strawberry-raspberry weevil

Black bugs harm not only raspberries; weevils can ruin crops and other garden favorites. The main problem is the eggs laid directly into the bud, from which small caterpillars hatch. They devour the brushes, and from mid-summer they become full-fledged adult beetles and switch to raspberry leaves and stems.

Spider mite

These green beetles weave thin webs from the back of the leaf, which then dry out, sometimes this can kill many plants. The control methods used for spider mites are identical to the preventive ones for the vineyard.

A photo of the raspberry beetle will help you decide on the name; then the gardener himself will decide how best to combat the pest on his site.

Raspberry pests

Raspberry pest

Raspberry beetle: photo of the pest

This is a beetle with a slightly oblong oval body 4-4.3 mm long. It is completely covered with gray and yellow hairs. Order Coleoptera (raspberry family). The eggs are laid in a flower or a young succulent ovary. The characteristic elytra are gray with a black tint. Description in the immature larval phase: looks like a caterpillar up to 7 mm long. Bristles are visible on the back.

Both adults and larvae cause harm. The pest develops in one generation. The raspberry beetle appears on raspberries in spring at a ground temperature of +12 degrees. He crawls out of it, moves to a bush, where he feasts on the foliage, not yet blossomed and blossoming flowers of the weeds. Capable of flight, the beetles migrate from bush to bush. They spoil stone fruits, cloudberries, blackberries, bird cherry, apple trees, and pears.

The female beetle lays one egg per flower, having the ability to lay up to 40 eggs during the growing season. After 7-10 days, larvae appear with characteristic spikes raised upward. Caterpillars damage inflorescences by making passages in their pulp and damaging the receptacle. It is quite difficult to detect in fruits. As a result, deformed, underdeveloped fruits are formed. Over time they wither and crumble. The larvae also feed on ripe fruits. This continues for 40-45 days, after which some of them fall to the ground and enter a passive life cycle, only to pupate a year later, in August. Others overwinter in the roots, in moist, loose soil, at a depth of 0.15-0.20 m. Young adults form from such caterpillars in early August of the current year.

Larva damages fruits

Attention! According to statistics, the beetle and its larvae, by damaging the berries, can destroy up to half of the entire expected harvest.

Processing raspberries as a means of preventing worms in berries

The worm spoils ripe raspberries. To protect raspberry bushes from worms, it is necessary to carry out preventive measures. A way to treat raspberries in the spring against worms:

• In early spring, the bushes are watered with hot water (80 degrees). It is recommended to douse bushes and soil;
• In the fall, the area with raspberries must be dug up, the remaining weeds must be removed, and the soil must be mulched. Humus, peat, sawdust, and compost are used as mulching materials. Worms living on the soil surface cannot get out from under the mulch layer;
• During the flowering period, worms can be collected by hand. The surest way to quickly remove worms from raspberries and clean all the bushes is to spread the film on the ground and shake the raspberry bushes. Carefully collect and burn fallen worms;
• A popular way to treat raspberries for worms in the berries: the bushes are sprayed with a soda solution (10 g soda plus 5 liters of water) or mustard infusion.

Pests can cause serious damage to a gardener. They can damage raspberry bushes and ruin the harvest

Therefore, it is important to carefully inspect the bushes in spring and summer and promptly destroy them when insects appear. Knowing how to get rid of worms in raspberries, weevils, flies, and bedbugs, you can grow a large harvest of aromatic, delicious berries

Raspberry stem fly (Chortophila dentiens Pand)

A small (up to 7 mm long) flying insect of a brownish-gray color with transparent wings. It damages raspberries and blackberries in May (depending on the ambient temperature) during the period of shoot growth. The female lays eggs in the axils of young shoots, which leads (as the larva develops) to the necrosis of tissue above the area where the eggs are laid. The larvae gnaw through the stem and rush to the base of the shoots. The stems turn black, dry out, and bluish rings appear around the passages. The larvae move to the base of the stem, after which they settle there for the winter.

In the spring, after the soil warms up to 13-15°C, raspberry flies fly to the surface, and the cycle repeats. Often weakened and rotten shoots mislead gardeners, who mistake this for isolated cases of disease or damage. The main thing is to have time to cut off and burn the wilted tops of the shoots just below the egg laying site in order to prevent the larva from going inside the stem for the winter. But this measure is relevant only until the larvae hatch from the eggs.

Most raspberry pests are very difficult to detect due to the fact that they are small and hide in shoots and stems. Therefore, be careful, do not neglect the garden and remember that only timely prevention and treatment will help get rid of garden scourges.

Description

The raspberry beetle is grayish-black in color, about 4 mm long. The larvae of the raspberry beetle are light yellow in color, up to 7 mm long, with a strongly pronounced segment.

Young raspberry beetles and partially larvae overwinter in the soil in earthen cradles at a depth of 5 - 25 cm.

Raspberry beetles usually emerge from the soil in mid-May, when the top layer of soil warms up to 12°C. They first feed in the flowers of fruit plants, eating away the stamens and pollen.

When raspberry buds appear, the beetles eat them. Female raspberry beetles lay up to 50 eggs in flowers between the stamens and pistils.

The larvae of the raspberry beetle feed on the fruit and also eat the drupes. They live in the berries until they ripen and then move into the soil to pupate. The beetle has one generation.

The raspberry beetle is one of the main raspberry pests in the forest zone, where it annually damages more than 15% of the crop.

What does the Raspberry Beetle look like:

The beetle is grayish-black in color, covered with rusty-yellow or grayish hairs, body length 3.8-4.3 mm. Legs and antennae are yellow. The egg is white, elliptical in shape, about 1 mm. The larva is yellowish with sparse light hairs, 6-6.5 mm long. At the end of the larva's body there are two spines curved upward.

Why the Raspberry Beetle is dangerous: Coming out of winter, the beetles and larvae begin to feed on the interveinal space on the leaves of plants. When raspberries begin to bloom, larvae and beetles move onto it, where they gnaw out the buds and young flowers.

When the Raspberry Beetle appears: In May, as soon as the temperature of the upper layers of the soil warms up to 12-13 degrees, they go to winter during the period when the raspberries finish fruiting.

What contributes: Lack of measures to combat the beetle, abundant availability of plants for food (dandelion, cherry, raspberry).

How the raspberry beetle spreads: By migration.

How to fight, measures to combat the raspberry beetle:

Double spraying

karbofos, SP (100 g/kg) 90 g/10 l of water,

kinmiksom, EC, ME (50 g/l) 2.5 ml/10 l of water.

To combat the raspberry beetle, berries damaged by the beetle are collected in baskets with a bottom lined with dense material or polyethylene; destroy the larvae. The soil under the bushes is plowed, which helps reduce the wintering stock of beetles and larvae in the soil. Raspberries in the budding phase are treated with 0.1 - 0.2% chlorophos (30% concentrate). In addition, if the plantation is significantly infested with beetles, it is recommended to water the soil with 0.2% chlorophos during the budding phase.

Autumn digging of the soil.

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Raspberry glass

The main sign of infection of raspberry plants for parents such as raspberry glass is the formation of characteristic swellings on the shoots. In addition, in the area you can see a blue-black butterfly, resembling a wasp in appearance, with bright yellow stripes on its belly. However, it is not butterflies that damage plants.

The damage is caused by their larvae - white caterpillars with a brownish head. The eggs are laid by the female near the base of the shoots, and some time later the caterpillars emerge from them and, crawling under the bark, make spiral-shaped wormholes in it.

The larvae penetrate inside the shoot and remain there to overwinter. A thickening appears in this place. After wintering, the caterpillar moves inside the stem, gnaws a hole at the base, and then pupates. The butterfly flies out of the hole after the raspberries bloom and lays eggs again. Shoots damaged by glass cells stop bearing fruit, wither, become brittle and dry out quickly.

The fight against glassware is:

• removing shoots that have borne fruit;
• cutting off affected bushes almost to the root and then burning them;
• periodically loosening the soil around each bush;
• thorough inspection of planting material;
• treatment of raspberries against glass glass pests with Karbofos. Spraying is carried out before the first leaves appear and before flowering begins.

Protecting raspberries from pests: spring work

Most gardeners associate the retreat of winter cold and the beginning of snow melting with the beginning of the home gardening season.

When the threat of return frosts has passed and the sun's activity increases, it's time to worry about the health of berry bushes, including currants and raspberries.

It is more practical to cultivate raspberry bushes immediately after loosening the soil and applying organic fertilizers.

To prevent the spread of infections carried by raspberry pests, the root zone of plants is mulched with rotted manure. The bacteriological environment suppresses a number of viruses and spores that are dangerous to berry bushes.

Universal means for preventive spraying include broad-spectrum insecticides:

If you treat your plantings with these preparations twice a year, in spring and autumn, you will not encounter the problem of a large number of pests attacking raspberries throughout the entire season.

In the case where attacks by certain types of insects have already been noted on your garden plot, you should additionally treat the bushes with highly specialized means:

Aphid repellent

Small pests are incredibly voracious and multiply very quickly

Therefore, during the period when the first leaves appear, it is important to additionally treat the bushes a second time with a standard set of preparations: As a rule, pests overwinter in soil or plant debris and attack weakened plants

As a rule, pests overwinter in soil or plant debris and attack weakened plants.

Spring treatment is combined with cleaning the root zone of fallen leaves and sanitary pruning of shrubs.

Prevention

To limit the spread of raspberry beetle pests, it is recommended to use the following preventive measures:

It is not recommended to plant raspberries next to apple and pear trees. The beetle flies out in early spring, at which time it feeds on the flowers of fruit trees. Apple and pear trees bloom in early spring, and it is on them that the raspberry beetle rushes after spending the night. If raspberries are placed next to flowering trees, the risk of fruit damage increases greatly. Regularly feed plants with organic fertilizers. Be sure to add ash solution to the soil. It is recommended to use an ash solution for treating shrubs by spraying. In early spring, before flowering, it is useful to spray raspberries with a 1% solution of Bordeaux mixture. It is useful to carry out deep plowing of the soil in the spring. The procedure will help destroy insect burrows and destroy them. Organize regular watering for crops. Do not allow the soil to dry out or become waterlogged. Be sure to thin out the raspberries every year. It is necessary to trim overgrown branches and bushes to ensure air flow to the plants. After harvesting, be sure to dig up the soil near the raspberry tree. It is first recommended to sprinkle a thick layer of tobacco dust on the surface of the soil, then dig the ground deeply. This procedure will help bring insects hidden for the winter to the surface.

Tobacco dust that gets into deep soil layers will serve as an additional prevention of the spread of the pest. It is important to carry out regular inspection of shrubs. If larvae or adults are found, it is necessary to urgently get rid of them

It is advisable to best inspect plants in the early morning; at this moment, insects are in a passive state, so they are easy to detect and collect.

Description of the pest

The culprit of crop damage is the raspberry beetle, also called the common raspberry beetle (Byturus tomentosus). Despite its small size (4-6 mm), this grayish-red bug causes significant damage to raspberries. It produces numerous and unusually voracious offspring, which by the time of harvest manage to spoil a significant part of the berries, and with mass reproduction, completely deprive the gardener of the delicacy.

Raspberry beetle

Raspberries begin to play pranks already at the end of April or beginning of May when the soil warms up to +10. +12°C. First, they fill their bellies with young leaves and nectar from early flowering plants, giving preference to weeds. However, beetles do not disdain cultivated plants: insects damage the leaves, buds and flowers of apple trees, pears, plums, cherries, currants, etc.

For dessert, the pest leaves his favorite raspberries. The beetles move to the bushes and feed on young leaves, and then begin oviposition. The female places one egg at a time in the buds or young raspberry ovary, and manages to lay up to 50 eggs in a short time. They soon hatch into larvae about 6 mm long, which immediately begin to eat the pulp of the berries.

The raspberry beetle larvae have worked. Photo from the site vechorka.ru

The worms continue to feast for 1.5 months, so gardeners often take them by surprise already at harvest. You can find berries without larvae, but with signs of their recent activity - such fruits usually rot at the stalk and turn out to be small and ugly.

Having eaten their fill, the larvae leave the spoiled fruits and plunge into the soil near the bushes to a depth of 5-20 cm, where they pupate and “grow up” - at the end of summer or September they turn into new beetles. Those, in turn, remain to overwinter in the soil, and next spring they give birth to the next offspring of pests.

Butterfly class

This class contains a variety of raspberry pests that look like butterflies.

The first representative of the class is the noctuid. There are two types:

Raspberry golden - there are bright yellow wings with gray-brown spots on them. The caterpillars live on raspberries and blackberries and feed on their leaves.

The gray ground caterpillar is twice the size of this butterfly. It feeds on raspberry leaves from late May until autumn.

How to fight? If there are holes in the raspberry leaves in the garden, there is no better method than treating them with an insecticide.

The second pest butterfly is the raspberry glasswing. It looks like a wasp: the body is blue-black, with yellow circles, the wings are transparent. The insect lays eggs in the soil near the raspberry shoot.

If there is insufficient movement of juices in the stems, the yield decreases, the shoots grow poorly and become brittle.

Another butterfly that harms raspberries is the raspberry bud moth. It is brown in color and has yellow spots on its wings.

It is the moth larvae that are dangerous, not the adults. After all, only a larva can bite into a bud before flowering and completely destroy it, and then pupate in the stem. During raspberry flowering, the butterfly lays eggs in the receptacle. The emerging caterpillars are voracious. They eat the fruit and move down the stem to the shoots, where they overwinter, making a cocoon.

From the end of May to September, leaf rollers also attack raspberries. This is also a brown, brown or yellow butterfly. The leaf roller caterpillar infects the leaves. She weaves a web around the leaves so that they curl. It can cause harm during the flowering period to buds, buds, and, as a result, the berry itself.

How to fight? Various types of insecticides are used - chemical ones: Iskra Double Effect, Fufan, Inta-Vir, karbofos emulsions; biological - Actofit, Lepidotsid, Mospilan.

For prevention in the fall, old shoots and growths are removed, and the lower part of the shoots is generously sprayed with chemicals.

Beetle control methods

The fight against this pest combines a number of agrotechnical techniques, as well as preventive and therapeutic treatment of plantings.

We invite you to familiarize yourself with the features of autumn planting raspberries.

Agrotechnical techniques

The fight against raspberry beetles must begin with simple agricultural techniques:

1. Perform deep digging of the soil in autumn and spring. Thanks to this, the number of pupae that overwinter in the soil is significantly reduced. At the same time, add wood ash and tobacco dust to the soil.
2. In the warm season, sprinkle the soil around the bush with mulch to prevent insects from leaving the soil. Crushed peat, sawdust or humus are suitable for this.
3. Before flowering, spread a tarp under the plants and shake off insects from the branches, then destroy them. Carry out the procedure early in the morning, when the beetle is inactive.
4. To plant raspberry bushes, choose a place as far as possible from apple and pear trees - raspberry beetles use these plants as additional food.
5. Before flowering, the bushes can be covered with gauze or agrofibre - this will protect the plant from the harmful effects of the pest.
6. Regularly inspect the plantings, manually collect damaged fruits, and then burn them.
7. In early spring, carry out preventive treatment of the soil around the bushes with Bordeaux mixture at a concentration of 2%.

Ground beetles are considered the natural enemies of the raspberry beetle. These are fairly large beetles, usually black in color, and belong to one of the most common families of these insects. To attract ground beetles closer to raspberries, you need to plant garlic or onions next to them.

Biological products

To destroy this pest, the drug “Guapsin” is widely used, which has a very good result in the fight against raspberry beetles - up to 94%.

2% Bitoxibacillin has the same properties. Treatment with biological products should be carried out twice: before the appearance of buds and before the flowers bloom.

Chemicals

Treatment with insecticidal agents is carried out twice a year: before and after flowering.

The following drugs are used for this:

1. “Iskra” is a tablet product that is dissolved in water at the rate of 1 tablet per 10 liters of liquid.
2. "Karbofos" - it is used when a large number of beetles are detected. 90 g of the active substance must be diluted in 10 liters of water.
3. “Kinmiks” or “Confidor” are emulsions prepared according to the included instructions. To treat 1 bush you need 1.5 liters of working solution.
4. “Fufanon” at a concentration of 0.1% is recommended for high degrees of damage in the bud formation phase.

Important! When working with any of these chemicals, you must use protective equipment - a respirator and gloves

Traditional methods

In addition to chemicals, there are also a number of folk ways to combat this pest:

1. Potassium permanganate solution. An aqueous solution is prepared from this substance: 1 g of active substance is needed per 20 liters of liquid. After the snow has melted, the resulting product is used to treat the soil under the bushes.
2. Mustard solution. The plant is treated with it before flowering. To do this, mix 100 g of mustard in a small amount of hot water until it reaches a creamy consistency. Then dilute the resulting mass with another 10 liters of water.
3. Tansy infusion. Infuse 700 g of the plant in 1 bucket of water for 24 hours, then bring to a boil and cook for about 30 minutes. Cool the infusion, strain and add another 10 liters of water.
4. Tobacco infusion. To obtain it, pour 1 cup of dry substance with 10 cups of water, then leave on fire for 2 hours. Before applying to the soil, dilute with water at a rate of 1:3.
5. Soda solution. Before the ovaries appear, the bushes need to be sprayed with this substance. For 10 liters of water you will need 1 tbsp. spoon of powder.

Treatment of plants must be carried out in dry and sunny weather.
In case of rain, the procedure should be repeated. Preventing pest damage to raspberry plantations is quite simple. First of all, it is necessary to comply with all norms of agricultural technology, and also not to forget about preventive treatments of raspberry bushes before and after flowering.

"Cure" from the people

Folk methods of struggle are based on the results of many years of observations. Thus, experienced gardeners do not recommend immediately throwing away damaged raspberry fruits. First, they are filled with lightly salted water. After 0.5 hours the pest will crawl out. The berries are for processing, the larvae are for birds.

By the way! Birds (hoverflies, ground beetles) - natural enemies of the raspberry beetle - can be attracted to the garden if you plant garlic or onions near the raspberry bushes. Hoverflies are insects similar to large wasps; they do not bite and hang in the air for a long time. There are more than 40 species of ground beetles in nature. I attack inactive beetles at night, eating them.

Gentle bioprotection

• After the snow melts, the raspberry bushes are sprayed with a slightly pink solution of potassium permanganate (0.5 grams of the substance per 10 liters of water).
• It is also popularly practiced to treat raspberry bushes against raspberry beetles with an aqueous infusion of dried tansy grass (350 g per 10 l). The drug is infused for 24 hours, boiled for 0.5 hours, filtered and brought to the volume of a bucket before irrigating with water.
• In autumn and spring, before digging up the soil, it is watered with a decoction of tobacco or shag. 200-300 g of dry raw materials are filled with water (7-10 l). Leave for 24 hours. Boil for 0.5 hours. Cool and bring to 10 liters.
• Another tobacco concentrate. Prepared from 1 glass of tobacco, filled with 10 glasses of water. Simmer over low heat for 120 minutes. Before use, the prepared concentrated solution is diluted with water: 1 glass to 3 glasses of water.
• There is another way to fight the raspberry beetle using tobacco. When the buds first appear, 7 days before they bloom, the treatment is performed as follows. 400 g of tobacco dust or waste is infused in 10 liters of water for a day. Boil (1 hour). Cool and strain. Pour 1000 ml of water into each liter of decoction and add 0.4 kg of grated laundry soap.
• Dry mustard powder is used instead of tobacco. 100 g is poured with boiling water until it reaches the consistency of sour cream. Rubs well. Add the composition to 10 liters of water and spray the bush.
• Before the ovary appears on the bushes, treat them every week, at least once, with a solution of baking soda: 1 tablespoon per bucket of water.
• The biological product against the raspberry beetle Guapsin is actively used. The percentage of pest damage reaches 94%. The insectofungicide contains the bacteria Pceudomonasaureeofaciens b-306. They not only parasitize beetle larvae, destroying them, but also decompose poorly soluble soil fractions, activating plant nutrition. Bitoxibacillin (2%) also has these properties. Raspberries are sprayed with it before the buds appear and on the eve of flowering.

Many drugs, as well as preventive measures, play a complex role, affecting other pests.

Check out articles on similar topics

• How to protect raspberries from pest moths
• Raspberry shoot gall midge
• Treating raspberries against spider mites
• What to do if cabbage attacks raspberries

Comments

• Lyudmila

  Thanks for the advice. I will definitely fight pests using these methods.

  31.07.2017

  Answer

leave a comment

Methods to combat the raspberry beetle:

Spray raspberry bushes with a solution of potassium permanganate at the rate of 0.5 grams of potassium permanganate per 1 bucket of water.

Some gardeners advise making onion and garlic beds near raspberries. These plants repel beetles and attract beneficial insects (ground beetles, hoverflies).

We spray raspberry bushes with fungicides or insecticides when buds appear. The drug “Fitoverm” helps many people very well, it keeps the defense up to three weeks. You can use Fufanon instead. Treatment is carried out at the end of May (when the cherry blossoms).

You can also try using emulsions of the drugs “Confidor”, “Kinmiks” (per 10 liters of water – 1 ampoule of 2.5 milliliters) and “Iskra” (per 10 liters of water – 1 tablet). The last of which can be found in almost any store. The solution consumption is 1-1.5 liters per 10 raspberry bushes.

During the formation of raspberry buds, you can simply shake off the beetles themselves onto special bedding laid out under the bushes on the ground, or simply into an upside-down open umbrella. All collected beetles must be destroyed. It is best to do this at the very beginning of raspberry flowering, early in the morning, at an air temperature of up to +12°C, when the beetles are still sleepy and inactive.

Among herbal remedies, tansy infusion is recommended (350 grams of dried herb per 5 liters of water). Infuse for a day, and then boil for 30 minutes, filter and add cold water, so that you end up with 10 liters of infusion.

Fading shoot tips should be cut off after 1-2 weeks.

In my personal opinion, successful control of the raspberry beetle should be carried out first of all before the raspberries bloom. We spray raspberry bushes with INTA-VIR (1 tablet per 10 liters of water). I was happy with the result, and no extra hassle with “shaking” the bushes.

It is necessary to loosen the soil under raspberry bushes in late autumn or early spring. In the fall, be sure to carry out additional digging of the soil in order to remove excess raspberry branches in addition to beetles. It is recommended to add charcoal or tobacco dust when digging.

By missing the moment of budding, we end up with wormy raspberries. The raspberry beetle does not cause particularly serious damage to the raspberry bushes themselves.

Beetle on a flower

Control measures

To quickly eliminate the raspberry beetle infestation, chemicals are used. Traditional recipes are no less effective, but more labor-intensive.

Drugs

To effectively combat raspberries, insecticides such as Aliot, Actellik, Kinmiks, Iskra, and Confidor help. Raspberry plantings are treated with these preparations during the budding period and at the beginning of flowering.

Among insecticides there are long-acting preparations that retain their destructive effect on insects for up to 25 days, for example, Fufanon.

Working solutions are prepared strictly according to the instructions without exceeding the indicated dosages. It is prohibited to use such drugs during the fruiting period.

The use of chemicals is justified if at least 3-4 caterpillars or beetles are found on one raspberry bush.

More gentle are the preparations of biological origin Fitoverm, Guapsin, Bitoxibacillin, which allow you to harvest an environmentally friendly harvest. Their use is based on the action of beneficial microorganisms.

Raspberry beetle (Byturus tomentosus)

The nasty little wriggling worms that spoil the whole impression of raspberries are the larvae of the raspberry beetle. Both they and adult individuals overwinter at a depth of 5-20 cm and in early spring feed only on nectar and weed pollen. And only then, having gained strength and become stronger, they switch to raspberries, currants and gooseberries.

The raspberry beetle is a small insect (up to 4 mm in length) that feeds on raspberry flowers and lays eggs directly in the berries. As the berries ripen, the larvae themselves grow and feed on the tender and juicy pulp. You can see them only by picking the berry, which makes it much more difficult to detect the pest. The period of beetle activity occurs in June, before the raspberries bloom. If you started processing strawberries earlier, then the beetle will move from them to raspberries somewhere in mid-to-late May.

Each female lays up to 40 eggs directly into the flowers. At the same time, she tries to lay one egg in each ovary in order to provide each larva with a “separate apartment.” If the worms were not detected, then in the fall they leave the fruits for the soil, where either the following spring or a season later they turn into adult beetles.

Raspberry beetle - photos and all known methods of destruction

Not only adults and children love raspberries. Various insects are also not averse to feasting on it. The greatest danger among them is the raspberry beetle. In everyday life it is often called raspberry.

Pest settlements in the bushes can lead to the most unpleasant consequences. The plant begins to wither, the beetle larvae make the berries unsuitable for consumption and sale, and significantly reduce the yield.

Preventive measures and the right strategy for exterminating raspberry beetles will help get rid of them once and for all.

Detailed description and photo of the pest

The raspberry beetle is a typical representative of the raspberry family from the order Coleoptera. In accordance with its name, it chooses plantings of garden, ornamental raspberries and blackberries as its habitat. Sources of additional nutrition can be currants, gooseberries, cherries, thorn bushes, pears, and rowan.

Appearance

How to recognize a pest:

• the raspberry beetle is characterized by an oblong oval body, its length ranges from 3.5 to 4.5 mm;
• the color is predominantly dark gray, with red-colored individuals being less common;
• the body is densely covered with hairs of the same color;
• along the edges of the pronotum and abdomen the color is more saturated, most often it is reddish;
• brown or yellow club-shaped antennae and serrated claws.

The eggs are tiny in size, not exceeding 1 mm, capsule-shaped, yellow or white.

The worm-like larva of the raspberry beetle boasts 3 pairs of movable legs, a yellowish color and sparse fibers on the body. Each segment is decorated with dark spots. The maximum length of a young individual is 6.5 mm.

On a note! A characteristic feature of the larvae is the presence of two hook-shaped spines on the last segment of the body, which are curved upward.

Features of life

Adults and larvae spend the winter in the surface layers of the soil at a depth of 5-20 cm under or near raspberry bushes. With the arrival of spring, when the earth warms up to +13°C, they leave their shelters and climb to the surface. Typically, the time of awakening from hibernation occurs in the last ten days of April or the first days of May.

Hungry raspberry beetles begin to actively replenish their supply of nutrients. They feed on weeds and flower nectar. Direct colonization of berry bushes occurs before flowering. Insects eat young leaves, and when flowers and buds appear, they focus all their attention on them. The beetles bite into the buds and eat away the nectaries, leaving the sepals intact.

Interesting! Raspberries have extraordinary flying abilities. They can travel considerable distances in search of flowering plants.

How raspberry beetles reproduce

The mating season begins in mid-May. Fertilized females begin laying eggs. The female individual lays embryos in portions, no more than 2 pieces per flower. In total, 25-40 eggs are formed in the female’s body. At the end of June, beginning of July, adults die. The total lifespan of an adult raspberry beetle is 10-11 months.

The egg stage, under favorable conditions, lasts from 8 days to two weeks. The hatched larvae remain on the surface of young fruits for some time. Having adapted to the environment, they penetrate the ovary and eat away the receptacle and drupes. The raspberry beetle larvae phase lasts 1.5 months. All this time it is in the berry, capturing the stage of fruit ripening.

The larva leaves the food supply on its own only before pupation. It crawls out of the berry, falls to the ground, and here burrows into the soil to a depth of 5-20 cm, sets up a cradle and prepares for the final stage of pupation.

The pupae are white, 4 mm in length.

Some of them go into a state of diapause and pupate next year. Others complete their development - in August and September, young beetles appear and remain to overwinter in the soil.

If some brave souls decide to come to the surface immediately after pupation, the first frosts kill them.

Interesting! Diapause helps the population survive even with the complete absence of fruits in lean years. The number of diapasing larvae varies from 20 to 80%.

Harm from raspberry beetles

After wintering, insects use quince, pear, and apple trees as a source of additional food and eat away the internal parts of flowers. On gooseberry and currant bushes, the buds are damaged. Their presence can be determined by small holes with jagged edges.

On berry bushes, adult raspberries damage buds, flowers, and young foliage, which leads to a decrease in yield. The larvae eat up the drupes, the berries begin to dry out at the base of the stalk, in which the pest's passages are clearly visible.

Affected fruits become deformed, lose their presentation, taste and quality. Most often, they can no longer be eaten.

Berries that are not too damaged can be saved by immersing them in lightly salted water for 30-40 minutes. During this time, the larvae will float to the surface, and the fruits can be used to make confitures and jam.

Pest control methods

The fight against raspberry beetles involves a complex of agrotechnical measures and preventive measures. In cases of severe infestation, heavy artillery is used - insecticides. If the work is carried out in a timely manner, the prognosis is positive and the bushes can be cleared of pest invasion.

Detailed instructions on how to deal with raspberry beetles:

1. In early spring and late autumn it is necessary to dig the soil deeply. In this way it is possible to significantly reduce the number of pupae. In spring, a thick layer of mulching is recommended to prevent insects from leaving the soil after wintering.
2. Before flowering, during the period of migration of raspberry beetles, you should lay a tarpaulin or any other cloth on the bushes, and gently shake the plants. Destroy fallen insects. The procedure is recommended to be carried out in the morning, when the air temperature does not exceed 15°C. Under such conditions, the beetles are apathetic and inactive.
3. Remove excess branches in a timely manner, cut off dried tops and branches, and thin out. This will ensure better air circulation.
4. Do not plant raspberry trees near apple and pear plantations, which pests use as additional food, and also regularly remove weeds from the area.
5. Before flowering, you can cover the bushes with gauze or agrofibre. The process is very tedious and time-consuming, but it will avoid a massive invasion of raspberry beetles.
6. It is recommended to periodically feed the seedlings with ash and organic fertilizers.
7. To disrupt the food connection between plants and raspberry beetles, remontant raspberries are planted, which bear fruit twice a year.

Application of insecticides

The use of chemicals is advisable when 3-4 larvae or adults are found on the bush. In addition, timely spraying will prevent the appearance of pests such as weevils and leaf rollers.

Important! To obtain the desired effect, irrigation with insecticidal preparations is carried out twice during the budding period: before flowering and after. It is strictly forbidden to spray the bushes during the flowering period.

Preparations for the destruction of raspberry beetles:

• Iskra product in tablets. One tablet dissolves in 10 liters of water.
• If the number of beetles is small, the plants are treated with a solution of Karbofos, at the rate of 90 g per 10 liters of water.
• Emulsions “Kinmiks”, “Confidor”. The working solution is prepared according to the instructions. 15 liters is enough to process 10 young raspberry bushes.
• Biological products “Guapsin” and “Bitoxibacillin” are distinguished by their high destructive ability, destroying up to 90% of larvae. And also, thanks to the content of bacteria, they accelerate the dissolution of soil fractions, thereby providing better nutrition for plants.

The list of products is supplemented by Fufanon, Inta-vir, Actellik, Fosbecid. It is important not to forget that when working with chemicals you should wear a respirator, protective suit, and gloves.

Folk recipes

There are also folk ways to combat the raspberry beetle. The most effective recipes:

1. In early spring, when the soil is free of snow, the ground is treated with a weak solution of potassium permanganate. For 1 g 20 liters of water.
2. Before flowering, spray the bushes with mustard solution. To prepare it, mix 100 g of mustard with hot water. You should have a creamy consistency without lumps. The finished mixture is brought to a volume of 10 liters.
3. To treat the bushes, prepare an infusion of tansy from 700 g of the plant and ten liters of water. Let sit for 24 hours, then bring to a boil and simmer for 30 minutes. The finished infusion is cooled, filtered and water is added to make 20 liters of infusion. Tobacco decoction is prepared using the same principle: take 10 liters of water for 300 g of shag.
4. While digging the soil, add wood ash or tobacco dust.
5. Before the ovary appears, the bushes are sprayed with a soda solution. One tablespoon of soda is dissolved in 10 liters of water.
6. To attract ground beetles, garlic and onions are planted near the raspberry tree.

Most of the remedies mentioned act not only on the raspberry beetle, but also on a wide group of other pests.

Source: https://beetlestop.ru/malinnyiy-zhuk/

Raspberry beetle: description

The common raspberry beetle (imago) is an insect with an oval-shaped body and body dimensions from 3.8 to 4.3 mm. The color of the beetle is dark brown or grayish-black, the body is covered with hairs of a yellowish-golden, rusty, sometimes gray hue. The antennae and limbs are brown or yellow. The eggs are elliptical in shape and white. The beetle larvae look like caterpillars with a brown head and a yellow body, which is covered with sparse golden hairs; at the end of the body there are two spines turned upward. The size of the larva ranges from 6 to 6.5 mm.

Raspberry development cycle

Adults or larvae overwinter in the top fertile soil layer at a depth of 5 to 25 centimeters. In the spring (approximately mid-May), when the ground warms up to +12°C, 2 weeks before the raspberry bushes begin to bloom, the beetles crawl to the surface.

At the beginning of spring, adult insects eat young leaves and flowers of other plants (they eat pollen and stamens of cherry, dandelion and early flowering weeds) in order to begin to reproduce.

Feeding on pollen from forage plants accelerates the maturation of female reproductive products by 2 times, compared with a diet consisting only of raspberries.

After about 2 weeks, the pests move to the raspberries and feed on their buds. The raspberry beetle is found on rowan trees, apple trees, currants, pears, gooseberries, plums, blackberries and even bird cherry trees.

The female beetle lays eggs (20 or 30 pieces each) in raspberry flowers, on young ovaries and leaves. The timing of egg laying coincides with the raspberry flowering period.

The larvae that emerge from the eggs after 7–10 days immediately crawl into the berries, eat the drupes, feed on the raspberry fruit, live in the fruit until ripening, causing damage in the form of winding corridors or destroying it completely. After the berries ripen, some pests go into the ground to a depth of 15–20 cm in order to pupate, some remain in the berries until harvest. Later, around August, the pupae turn into overwintering young beetles.

The raspberry beetle has one generation and spreads by migration: the flight distance reaches 120 meters.

The spread of the pest is favored by raspberry cherry trees, apple trees, pears and dandelions growing near the bushes.

Maximum damage to raspberry fruits is observed in wet years; the raspberry beetle is especially active in the European part of Russia. Depending on the growing conditions of raspberries, damage to the crop can range from 10 to 50%; damaged berries become small, wither or rot, take on an ugly shape, and their color fades.

Detailed description and photo of the pest

The raspberry beetle is a typical representative of the raspberry family from the order Coleoptera. In accordance with its name, it chooses plantings of garden, ornamental raspberries and blackberries as its habitat. Sources of additional nutrition can be currants, gooseberries, cherries, thorn bushes, pears, and rowan.

Appearance

How to recognize a pest:

• the raspberry beetle is characterized by an oblong oval body, its length ranges from 3.5 to 4.5 mm;
• the color is predominantly dark gray, with red-colored individuals being less common;
• the body is densely covered with hairs of the same color;
• along the edges of the pronotum and abdomen the color is more saturated, most often it is reddish;
• brown or yellow club-shaped antennae and serrated claws.

The eggs are tiny in size, not exceeding 1 mm, capsule-shaped, yellow or white.

The worm-like larva of the raspberry beetle boasts 3 pairs of movable legs, a yellowish color and sparse fibers on the body. Each segment is decorated with dark spots. The maximum length of a young individual is 6.5 mm.

On a note! A characteristic feature of the larvae is the presence of two hook-shaped spines on the last segment of the body, which are curved upward.

Features of life

Adults and larvae spend the winter in the surface layers of the soil at a depth of 5-20 cm under or near raspberry bushes. With the arrival of spring, when the earth warms up to +13°C, they leave their shelters and climb to the surface. Typically, the time of awakening from hibernation occurs in the last ten days of April or the first days of May.

Hungry raspberry beetles begin to actively replenish their supply of nutrients. They feed on weeds and flower nectar. Direct colonization of berry bushes occurs before flowering. Insects eat young leaves, and when flowers and buds appear, they focus all their attention on them. The beetles bite into the buds and eat away the nectaries, leaving the sepals intact.

Interesting! Raspberries have extraordinary flying abilities. They can travel considerable distances in search of flowering plants.

Raspberry pests in pictures and how to combat them

There are other raspberry pests: the pictures below show individuals of both sexes. It tells about how the fight against them is carried out on a personal plot. Some are visible to the naked eye. Others can be recognized only by indirect signs of their presence.

Raspberry flea beetle

The raspberry flea beetle Batophila rubi is a small beetle with a body length of 1.4-2 mm, black with a blue tint. The beetle jumps well. It causes damage in July by skeletonizing leaves in the form of paths and small pits. Damages raspberries, less often honeysuckle. It occurs only rarely, so it does not cause much harm.

Control measures. Preventive spring spraying of bushes against a complex of pests with fufanon and its analogues also reduces the number of flea beetles. In case of large numbers, spraying is carried out in the summer.

The following shows these raspberry pests in pictures and the fight against them by spraying with insecticidal solutions:

Two-spotted lurker

Cryptocephalus biguttatus Scop. - a small beetle 4.5-6 mm long with a short stocky body. The head has a steep forehead and is pulled into the cervical shield. The elytra are black, with a wide red-yellow transverse spot at the apex. The legs, head and pronotum are black. In May-June it feeds on berry and ornamental bushes, gnawing young leaves.

Control measures. Collection and destruction of individual beetles, preventive and eradicative spraying with one of the drugs: fufanon, kemifos, actellik, spark, Inta-Vir.

Watch how raspberry pests are controlled in the video - the video demonstrates all the agrotechnical operations available to the gardener:

Description

Grayish-black in color, about 4 mm long. Raspberry beetle larvae

light yellow in color, up to 7 mm long, a strongly defined segment.

Young raspberry beetles and partially larvae overwinter in the soil in earthen cradles at a depth of 5 - 25 cm.

Raspberry beetles from the soil

They usually emerge in mid-May, when the top layer of soil warms up to 12°C. They first feed in the flowers of fruit plants, eating away the stamens and pollen.

When raspberry buds appear, the beetles eat them. Female raspberry beetles lay up to 50 eggs in flowers between the stamens and pistils.

Raspberry beetle larvae

They feed in the fruit stem and also eat drupes. They live in the berries until they ripen and then move into the soil to pupate. The beetle has one generation.

One of the main raspberry pests in the forest zone, where it annually damages more than 15% of the crop.

What does the Raspberry Beetle look like:

The beetle is grayish-black in color, covered with rusty-yellow or grayish hairs, body length 3.8-4.3 mm. Legs and antennae are yellow. The egg is white, elliptical in shape, about 1 mm. The larva is yellowish with sparse light hairs, 6-6.5 mm long. At the end of the larva's body there are two spines curved upward.

Why is the raspberry beetle dangerous?

: Coming out of winter, beetles and larvae begin to feed on the interveinal space on plant leaves. When raspberries begin to bloom, larvae and beetles move onto it, where they gnaw out the buds and young flowers.

When the Raspberry Beetle appears: In May, as soon as the temperature of the upper layers of the soil warms up to 12-13 degrees, they go to winter during the period when the raspberries finish fruiting.

What contributes: Lack of measures to combat the beetle, abundant availability of plants for food (dandelion, cherry, raspberry).

How the raspberry beetle spreads: By migration.

How to fight, measures to combat the raspberry beetle:

Double spraying

karbofos, SP (100 g/kg) 90 g/10 l of water,

kinmiksom, EC, ME (50 g/l) 2.5 ml/10 l of water.

To combat the raspberry beetle

berries damaged by the beetle are collected in baskets with a bottom lined with dense material or polyethylene; destroy the larvae. The soil under the bushes is plowed, which helps reduce the wintering stock of beetles and larvae in the soil. Raspberries in the budding phase are treated with 0.1 - 0.2% chlorophos (30% concentrate). In addition, if the plantation is significantly infested with beetles, it is recommended to water the soil with 0.2% chlorophos during the budding phase.

Autumn digging of the soil.

Please note this:

Disease Prevention

You will not have to deal with the described pests if timely prevention of raspberries is carried out. The optimal season for preventive treatment is mid-April. The buds on the bush are still closed, but the circulation of juices is already proceeding in spring mode.

Many gardeners recommend dousing raspberries with boiling water after winter; this kills the larvae of many insects and repels them. Irrigation and watering of the soil near the trunks is carried out with copper sulfate (3% solution) or Bordeaux mixture. Boric acid and potassium permanganate have an antibacterial effect and cause the death of pest larvae.

In addition to using solutions, dry and lifeless raspberry branches should be cut off immediately, as pests like to settle in them. Onions or garlic are planted near raspberries. These crops repel insects because they have a pungent odor.

If you constantly monitor the development of the bush and pay attention to it from time to time, the raspberries will never become infected with pests. Even if infection occurs, it will be eradicated at a very early stage, so there will be no harm to the berries or the bush itself

In growing raspberries, it is of great importance to carry out pest prevention and monitor the condition of the crop.

Spider mites on raspberries

Spider mites cause great harm to raspberry bushes. This pest multiplies quickly, especially in dry times. Raspberry plantings that are too thick are at greatest risk. The fact that plants are infected with spider mites is eloquently indicated by yellowed and quickly falling leaves. It is in them that ticks spend the winter, and in the spring they continue their “activities”.

To get rid of spider mites, you need to:

1. Collect and burn foliage affected by the pest.
2. Immediately after harvesting, treat the bushes with Acrex.
3. In early spring, spray raspberry bushes with urea.

For those who have a high mite infestation of raspberries and who are concerned about the question of how to spray raspberries against pests, we can recommend the effective drug Fufanon. As practice shows, in most cases, only one treatment with this product is required to get rid of pests.