Bark beetle - a particularly malicious pest orchard. During the period of mass reproduction, these insects are capable of completely destroying even an adult apple or pear tree in one and a half to two months. Every gardener should know how to notice the bark beetle in time and deal with it. In the article we will tell you how and why the bark beetle appears on the apple and pear trees, we will consider the main methods of pest control.
Biological characteristics of the apple bark beetle
Apple and pear trees are most often affected by one of the varieties of bark beetle - apple. Otherwise, it is called fruit sapwood. An adult insect looks like a small dark brown, almost black beetle about 4 mm long. On the rigid elytra of this beetle, dotted parallel grooves can be seen.
Bark beetles spend almost their entire lives inside wood, which makes it difficult to fight them.
In the spring, during the flowering of apple and pear trees, bark beetles begin to fly in order to spread the population and build new nests. By choosing suitable tree, the female gnaws branched passages through the bark deep into the wood. She lays many eggs every turn.
Soon, white legless and blind larvae hatch from the eggs, armed with powerful jaws. Their development takes place during the entire vegetative season exclusively inside the wood. There, the larvae gnaw through multiple long passages, feeding on bast and wood. The next spring, the larvae pupate, and by the time of flowering, young beetles emerge from the pupae. Having made their way out with the help of their jaws, they scatter.
Signs of damage to apple trees and pears by bark beetle
A sure sign of the presence of a bark beetle is a frequent visit to the apple tree by a woodpecker.
Early signs of the appearance of a bark beetle on apple trees or pears are as follows:
- round or oval holes with a diameter of 2 mm are found on the bark - flight passages;
- near the flight passages there are heaps of white or brown wood flour;
- some shoots stop development, do not give growth, the ovaries freeze as soon as they begin to form.
If the wood flour near the holes is brown, then the bark beetle has recently taken root under the bark. If white, the beetle has already damaged the wood and is working deep inside the trunk.
Subscribe to the group on FB and stay up to date with the latest news on gardening and horticulture!
The group appears up-to-date and interesting information from amateur gardeners and recognized experts. Press the "Like" button and subscribe instantly!Spraying against bark beetle
Fighting the apple bark beetle, given its lifestyle, is a difficult task. If pests are suspected to have settled on trees, a good systemic insecticide should be applied.
Systemic insecticides are distinguished by the fact that they penetrate deep into plant tissues. It is advisable to use them against bark beetles only after the end of flowering, when the flight of beetles begins.. According to gardeners, the following drugs give a good effect:
| Name of the drug | Advantages | Flaws |
| "Confidor Extra" | Resistant to washing off and high temperatures, prolonged action, effective against hiding insects. | Toxic to insect pollinators and humans. |
| "Calypso" | Prolonged action, quick effect (after a few hours). | |
| Pirinex | Effective against all life forms of the beetle - eggs, larvae, adults. Resistant to flushing and high temperatures. | Toxic to pollinators and humans. |
| "Arrivo" | The action is contact and systemic, prolonged. High efficiency. | Toxic to humans and pollinators. |
| "Bitoxibacillin" | Safe for humans and bees. Does not accumulate in fruits. High efficiency against larvae and adult insects. | Does not affect bark beetle eggs. Requires multiple treatments. |
Tip #1 If there is no suitable preparation at hand, you can prepare a remedy for bark beetles with your own hands. In 5 liters of water, dissolve 2 cups of green soap and 2 cups of carbolic acid. By diluting the resulting mixture by 4 times, apples and pears can be processed.
Protective measures when spraying the garden with insecticides
Spraying the garden with pesticides is permissible only in cloudy calm weather.
Gardeners often have to use chemicals, including those with a high hazard class. Therefore, it is advisable to have personal protective equipment in the arsenal:
- respirator;
- mask or goggles;
- special clothing;
- gloves.
It is better to purchase a gas-dust protective respirator in order to reliably protect yourself from accidental inhalation of both powders when preparing mixtures, and aerosols themselves when spraying.
Well proven respirators trademark"3M". The 3M 9300 series is especially popular - compact folding models that do not restrict the view and are softly fixed on the face. Another decent option – respirator "Astra-2". Unlike the 3M models, it has a rigid rubber construction, but it is no less convenient to use and perfectly filters aerosols of any degree of dispersion.
Fighting bark beetles with traps and repellers
harmless and effective method scare away the bark beetle - use ultrasonic repellers during the flight.
An additional method of protecting the garden from bark beetles is to catch insects during the flight. In amateur gardening, wooden traps are most often used. For example, after pruning apple trees, the branches are not disposed of, but are folded away from the site.
The meaning of this procedure is simple: bark beetles in search of a new home are guided by the sense of smell. The smell of a sawn tree attracts insects, and they sit not on living plants, but on deadwood. When the flight of beetles ends (after about 3-4 weeks), this deadwood is burned.
Special antipheromone bark beetle repellers also show high efficiency. These are tablets impregnated with substances that are unpleasant for the smell of insects. It is enough to hang repellers on the branches of apple and pear trees a week before the mass flight to keep bark beetles away from the garden for a long time. The advantage of this tool is that it is absolutely harmless to people and the environment. You can buy scarers, for example, in fruit tree nurseries.
Tip #2 Pheromone traps, unlike repellers, are better not to use in private gardens - you can lose all the trees. Pheromones are used only on areas of at least 5 hectares.
Syringing as a method of combating bark beetle on apple and pear trees
The described means are effective against the bark beetle only as long as it has not penetrated deep into the tissues of the plant. If the pest managed to penetrate deep into the wood, you need to fight it with another method - injection of the trunk. Syringe is commonly called the introduction of drugs into the flight holes of bark beetles. To do this, use a conventional medical syringe and one of the following insecticides:
The concentration of drugs during injection is quite high, but, unfortunately, otherwise it is difficult to etch the beetle from the tree trunk. After the introduction of insecticides, it is recommended to cover the holes with garden pitch.
For the treatment of valuable varieties of apple and pear trees, it is better to order a professional intra-stem injection.
Stimulation of the immunity of apple and pear trees to protect against bark beetle
Bark beetles, like other insect pests, never infect a strong tree. A healthy apple or pear tree has strong wood, and the insect is looking for where to settle its offspring so that it is easier for it to survive. Therefore, an important measure to protect the garden from bark beetle is to increase the immunity of fruit crops.
For the immunization of apple and pear trees, stimulants and fertilizers are used:
| Name | Purpose of application | Mode of application |
| "NV-101" | Activation of the immune system, improvement of the quality of photosynthesis. | Scatter the granules around the trunk circle, lightly embed into the soil and water. Dilute 1 ml of the liquid preparation in 10 liters of water and spray the apple trees after flowering for 3 weeks, once a week. |
| "Rich-Micro with Zinc and Copper" | Saturation of tissues with microelements, increasing resistance to diseases and pests. | Dilute 1 tablespoon in 10 liters of water and carry out foliar top dressing at the beginning of the growing season for 4 weeks, 1 time per week. |
| "Gumi-30 Universal" | Increasing the stress resistance of trees to external influences. Improving immunity to diseases, saturating tissues with mineral elements, stimulating growth. | Dilute 100 g of paste in 200 ml of water. Add the working solution to irrigation water at the rate of 1 tablespoon per 10 liters of water. Water once every 2 weeks. |
Bark beetle control plan in the garden
Treatment of bark beetle-infected apple and pear trees and preventive work can be carried out according to the following approximate plan:
| Event duration | Event |
| Spring, before the awakening of the kidneys |
|
| Green cone extension phase |
|
| Inflorescence advancement phase |
|
| After flowering |
|
| If a bark beetle is found |
|
| After leaf fall |
|
Prevention of the appearance of bark beetle in the garden
Whitewashed trees are less likely to be affected by bark beetles.
If a bark beetle started up on apple trees or pears, the gardener could have made the following mistakes:
- Improper tree trunk care. Cracks in the bark, frost holes, poorly processed cuts - all these are open gates for the pest.
- Inappropriate crown care. Dried or diseased branches emit an odor that attracts bark beetles.
- Improper care of the trunk circle. Fallen branches left under a tree can be infected with pest eggs. Next spring, young beetles will emerge from this litter.
To avoid the invasion of bark beetles in your garden, it is necessary to carry out a number of preventive measures:
- Timely clean and properly form the crown of apple and pear trees.
- Remove dead wood, stumps, cut branches from the garden.
- Carry out preventive spraying with insecticides after the end of flowering of apple and pear trees.
- Uproot and burn heavily affected trees.
- Adjust the mode of watering and fertilizing apple and pear trees.
- Whitewash trunks and skeletal branches of trees.
- Keep trunk circles clean.
- In the event of a mass infestation of all the surrounding gardens by the bark beetle, it is advisable to seek help from a specialized organization that takes care of the trees.
Actual questions about the fight against bark beetle
Question number 1. What trees, besides pears and apples, attract bark beetles?
The apple bark beetle is able to settle on cherries, plums, cherry plums, sweet cherries and other fruit crops.
Question number 2. What varieties of apple and pear trees are not affected by bark beetle?
Unfortunately, there are no varieties that are resistant to bark beetle damage.
Question number 3. Is it necessary to disinfect the soil under the apple tree so that there is no bark beetle?
The eggs and larvae of this pest live only inside the wood. They cannot live in the soil. Therefore, to prevent bark beetle infection, the usual cleaning of the near-stem circle from wood debris is sufficient.
Question number 4. How to care for fruit trees after expelling bark beetles?
It is necessary to provide plants with a normal regimen of watering and top dressing, as well as strengthen their immunity. All damage to the bark made by the bark beetle must be cleaned with a garden knife and covered with RanNet. If in some places the bark has exfoliated, you need to remove it to a healthy tissue, treat the edges of the wound with a solution of "Heteroauxin" and seal with RanNet paste.
In order for the orchard to grow and prosper, annually delighting big harvest, you need to know what pests can harm crops and how to exterminate them. For example, fight bark beetle on fruit trees- one of the most dangerous and widespread insects is most convenient and most effective with the help of chemicals. Top proven funds below.
Bark beetle - what eats and how to distinguish?
The bark beetle is called differently, it is the apple beetle and the shashel and the sapwood and the wood borer. The insect has an excellent sense of smell, so the trees in the garden as food sources, it is able to detect from a distance.
Getting on a tree, the female beetle actively gnaws through the bark, leaving behind a string of passages with laid eggs. Simultaneously with the deterioration of the bark, the insect infects the tree with spores of the fungus Monilia Candida, which begin to multiply. Larvae soon appear from the eggs - they continue to spoil the bark, increasing the number and width of passages, actively sucking out the juice, eating tissues.
The longer the larva eats the tree, the more it weakens and, if no action is taken, it dies over time.
As soon as the mating period begins, the beetles leave the trees, moving to new ones. One parent and two sister generations of insects develop per season. The more favorable the conditions for the development of beetles, the more actively they will multiply in the garden and the more difficult it will be to achieve a positive result even if apple trees are regularly treated from worms, as well as a number of fruit trees with special preparations and tinctures according to folk recipes.
Traces of a bark beetle on a tree - how to detect?
It is not difficult to determine that pests have settled on a tree. Usually weakened plants become objects of the insect. It is on such trees that beetles make their nest without drawing attention to themselves and without wasting their energy on damaging healthy hardwood. Therefore, first of all, weakened plants should be examined for the presence of insects.
Round and oval holes can be seen on the trunks of affected trees. Such traces will mean that the worms in the tree trunk settled a long time ago. A woodpecker constantly working on a tree can also be considered a sign of defeat. Most often, the feathered one hunts for the bark beetle.
Sawdust, which insects throw out of the trunk, can also be considered a sign of infection, forming passages under the bark. By the color of the sawdust, it will be possible to determine the level of damage to the tree: brown - the bark beetle did not have time to penetrate deep under the bark, white - spraying and any other treatment most likely will not work, since the insects managed to get too deep.
How to cure a tree at an early stage?
If the bark beetle appeared on an apple tree, cherry or any other tree not so long ago, then you can try to solve the problem without using chemicals. There are some simple ways to improve the situation:
- Regularly inspect trees for affected areas that can be treated with chlorophos by burning waste from leaves and branches.
- Catch adult beetles by hand during their activity - in the spring.
- Lubricate tree trunks oil paint or clay with manure.
- Build beetle traps by spreading thick tree branches around the perimeter of the garden for laying females.
If the listed methods of struggle do not give the desired effect, it is worth immediately moving on to more radical methods of extermination using proven drugs. Below is a list of really working tools.
Confidor Extra - features and applications
Means "Confidor Extra" is a line of drugs of a new generation, designed to fight insects different kind, including the bark beetle, from which the leaves wither on the trees and the fruits disappear.
The drug is produced in Germany, sold in the form of water-dispersion granules based on the active ingredient - imidacloprid. The product is packaged in convenient 400 gr bottles.
The action of the drug begins only if the consumption is in accordance with the instructions.
The product is non-toxic, therefore it does not pose a danger to people and pets. But, as for the harm to crops on the site, not everything is so smooth here. The drug is classified as hazard class 1 for beneficial microorganisms, therefore, in the process of processing trees, it is recommended to use protective materials.
Operates Confidor Extra for several weeks, allows you to destroy
larvae and adult beetles. The drug is considered universal, therefore it is suitable for combating a number of harmful insects in the open field.
Bi-58: what it consists of and how it works
Bi-58, a unique drug of its kind, will help fight the bark beetle on the apple tree and other trees with a fairly tangible effect.
Just like the previous remedy, Bi-58 is produced in Germany, in the form of an emulsion concentrate. The product is packaged in canisters of different volumes from one to ten liters. The main component is dimethoate. It is considered safe for humans, but poses a serious threat to bees.
When ingested by beetles and larvae, the agent has Negative influence on the intestines of insects, causing their death.
Vitalizer HB-101 - a proven remedy for pests
Vitalizer HB-101 is a complex designed to combat a number of pests and diseases fruit trees, which contributes to their active growth. The drug is produced in liquid form and in the form of granules, packaged in containers of different volumes. Based on active extracts from pine, cedar, cypress and plantain. Helps protect trees from:
- harmful beetles;
- larvae;
- caterpillars;
- bacteria and fungi.
The obvious advantage of the drug is zero toxicity. This means that you can get rid of the bark beetle without any risk of infecting trees, poisoning bees, or harming the development of microorganisms in the soil.
An additional bonus is the ability of the product to improve the resistance of trees to difficult weather conditions with an increase in the ability to bear fruit in the future.
Clipper - guarding the health of fruit trees
The Russian-made Clipper tool is also suitable for processing trees. Produced in the form of a concentrated emulsion in a 5-liter canister. The drug is based on the active substance bifetrin.
It is used against the bark beetle on fruit trees as an experiment, however, a positive result has already made itself felt in the process of processing plants in Russian nurseries.
The effect of the remedy lasts for several weeks. The drug can be used in parallel against the bark beetle-typographer from the gnawing family, as well as weevils from the sucking group.
An emulsion is prepared that can save a tree, according to the instructions, observing the proportions. The finished solution is used to spray damaged trees.
Senezh-Insa - a remedy for bark beetle with a stable effect
An example of an excellent antiseptic is SenezhInsa, also Russian-made. The drug has been actively used since 2012, it is in demand both among professional agronomists and amateur gardeners. The product is completely colorless, packaged in small cans of 5 liters or large barrels of 60 kg.
The concentrate is based on water, therefore, when interacting with wood, its texture and color do not change.
The drug penetrates into the bark of the tree, leaving active ingredients there. Non-toxic and effective. Helps to get rid of different types of bugs and bacteria, regardless of their stages of development.
Summing up all of the above, we note that it is not enough to know how to cure a tree from a bark beetle when insect damage has reached the level that it is almost impossible to save the plant. In order for the garden to grow healthy and fruitful, you need to monitor the trees, preventing the appearance of pests and treating the trunks in the initial stages of infection.
This is how you build yourself a cute cozy house ik out natural wood on the suburban area, furnish with home-made furniture made of oak, linden, cherry, and not from chipboard. You live in it, enjoy the village silence, and suddenly ... it seems that in the walls someone taps so finely and often. You go to the sound and see: the wall, the window sill, the surfaces of the furniture are pitted with tiny holes. Over time, dust is already noticeable in them. We sympathize, your cozy home has personally met such a scourge as bark beetles, or grinder beetles. And we urgently need to get rid of the presence of these harmful insects.
Who are bark beetles and what do they do in your home
Look carefully at those places where the crackle comes from especially intensely. You will surely see tiny bugs there. They can range in size from 1 to 10 mm, but most often come across medium ones, about 5 mm in length. The color of the chitinous cover is black or dark brown, on the head there are comb antennae. These bugs can look different, because bark beetles, bark beetles, grinders are representatives of a family consisting of 140 species of pest beetles. In our latitudes, the following are most common:
- The house grinder is a bug about 3 mm long, the chitinous cover is black-brown, golden spots are noticeable on the back. The white larvae of this beetle reach a length of 7 mm. The beetle mainly infects coniferous wood, often exposed to dampness.
- Furniture grinder - a dark brown bug with a length of 2.5 mm to 5 mm. On its elytra, many dots make up stripes. Females lay their eggs in those areas of wooden structures or furniture that are in the shade.
Furniture grinder can give 2 generations per season
- The comb-whiskered grinder mainly lives and breeds in hardwood. Its body is 3–5 mm long. It lives inside a tree or structure for several generations.
- Bread grinder - basically not interested in wood, but gives preference to dry, crumbly food products of both vegetable and animal origin. In a season, a colony of larvae can destroy most of the stock.
A bread grinder will not harm walls and furniture, but it will thoroughly spoil food
Insects colonize in well-dried wooden surfaces that are in a warm room. Females lay their eggs in any crack, chip or connecting groove, and after a couple of weeks, larvae hatch from the eggs. It is they who cause the maximum damage: within 1–2 years of life and development, white worms eat wood, gnawing inside entire labyrinths of many kilometers in length. Over time, the larva will pupate and turn into a beetle, but over the years you risk losing a window frame or even part of a wall.
It is the larvae of the grinder beetles that cause great harm to wooden structures.
Signs of the appearance of bark beetles in the house
Since beetles spend almost their entire lives inside wood, equipping chambers connected by a whole system of passages, they can be detected precisely by surface damage. The most noticeable signs:
In addition, you can hear the beetles gnaw through the wood. This is expressed in a quiet rustle, barely audible frequent tapping and crackling. It is these sounds that indicate that the house is struck. At the same time, you can find out exactly where the bark beetles settled their home.
Ways to get rid of the pest
In a long uninhabited wooden house it will be very difficult to deal with bark beetles and grinder beetles: most likely, the pests have already firmly settled inside all surfaces, thoroughly grinding all the wood from the inside. But if the appearance of bugs in the operated room was noticed quickly, there is every chance to destroy the insects. And there are ways to do this:
- chemical;
- biological;
- mechanical;
- use of electromagnetic radiation.
For the professional destruction of beetles in a wooden house, we advise you to contact the Dezcenter-Rus company. In the arsenal of specialists, such tools as microwave - disinsection for warming up wood, and the most effective and effective way to combat beetles in the house - fumigation with phosphine.
Chemical means to eliminate bark beetles
This is the most effective way to kill larvae and adults of pests. Using chemicals, you can easily process large surfaces you don't have to disassemble wooden structure. Their range is great. The most popular are:
The listed funds have earned popularity also due to non-toxicity for humans. But when using chemicals, safety precautions must be observed. Carry out the treatment in rubber gloves, a respirator mask and a headgear; After finishing work, wash your hands and face thoroughly with soap and running water. Be sure to follow the instructions in the instructions for the drug, diluting it for use.
Most of these facilities do not involve the presence of people or animals in the premises. Carry out the treatment when no one is at home during the day.
There are many means to combat bark beetles
Biological methods of dealing with bark beetles
If you do not want to use chemicals, a biological method will come to the rescue - a pheromone trap. It will allow you to control the population of bark beetles inside the house. Traps are completely harmless to humans. The principle of their action is based on the effect of pheromones on insects. For simplicity and reliability, you can purchase ready-made devices at a hardware store - Barrier 500, etc. In its dispenser there is a bait impregnated with pheromones, onto which bark beetles flock. It will only be necessary to clean the dispenser from dead insects in a timely manner and change the bait.
This method has disadvantages:
- limited use, since pheromones are effective only for adults in the summer;
- attraction risk a large number pests from the outside, due to the fact that the beetles perceive the call of pheromones even within a radius of 7 km.
Therefore, the use of antipheromone agents may be more productive. Pests will simply bypass the place in search of a more hospitable home.
Mechanical destruction of beetles
In some cases, only radical measures will help to completely get rid of insects. To do this, the damaged part of the timber or furniture is cut out and burned. This comes with certain difficulties:
- it is important to make sure that the defeat does not affect adjacent sections of boards or logs;
- it is necessary to carry out such work if the lesion is local and is in the initial stage;
- structural integrity will be compromised.
More gentle and less time-consuming may be methods such as gassing or fumigation.
- In the first case, gas through tiny holes is launched into the passages made by beetles in furniture or walls, and there it destroys pupae, larvae, eggs, adults. Such processing can be carried out not only in an apartment or house, but also in large warehouses.
- The fumigation process uses the highly toxic gas phosphine or magtoxin. He is able to penetrate very deeply into the structure of the tree. To process the house from the outside, it is covered with a special dome.
Entrust gassing and fumigation to specialists
The impact of electromagnetic radiation on pests
To protect your home from the effects of bark beetles, you can use a special installation that emits high-frequency electromagnetic pulses. They destroy larvae, eggs and adults of pests. To use the devices, you need to know exactly where the bark beetle was located, and control the degree of heating so that the surface does not char. It is also necessary to remove all metal fasteners at the impact site, and this will require the dismantling of the structure.
Special devices with the help of microwave radiation destroy larvae, eggs and adults of bark beetles
Folk remedies for pest control
If the listed methods do not suit you for some reason, use simple and affordable folk methods:
The processing procedure is as follows.
- a terrible scourge of our garden plots. Feeding on wood, in a few years they are able to destroy not only dacha plantings, but also the houses themselves, built of wood. And if it’s quite easy to find remedies for bark beetles to save buildings - any hardware store has a large selection of poisonous impregnations, then living plants need more careful and reliable protection.
How to detect bark beetle infestation
Bark beetles usually choose for themselves the weakest, diseased or still young trees that have never been subjected to special treatment. It is not so difficult to detect their presence. Tiny holes appear on the affected trunks, powdered along the edges with wood dust. If this dust is brown, the beetle is only under the bark. This tree can still be saved. If it is white, it has already penetrated into the wood.
Another indicator of the presence of an infestation would be a woodpecker chiseling a tree. You should not drive him away - he chooses the larvae and the beetles themselves, which have settled in the bark. In addition to bark beetles, the woodpecker also destroys other pests: barbels, woodworms, gold beetles, which are inaccessible to most birds.
Given the danger posed by the spread of this insect, it is necessary to use all possible means of combating the bark beetle, both preventive and destructive.
Prophylactic
1. Proper handling land plot
The soil should not lack moisture and nutrients. It must be processed - fertilize, loosen and dig.
2. Timely cleaning and formation of tree crowns
Crowns should not be thickened. All dead and too old branches must be removed in time.
3. Preventive whitewashing
Annual spring whitewashing of trunks garden trees markedly reduces the risk of spreading bark beetles. The simplest mixture for such processing is not difficult to prepare yourself. It is enough to mix manure with slaked lime or even ordinary clay.
4. Leaf litter removal
The collection and destruction of leaves after autumn leaf fall is a necessary event for gardeners who do not want to allow pests to breed on their site.
5. Branch cleaning
The release of old branches from dead bark allows you to destroy the larvae and the beetles themselves, feeding under it. And also deprives them of a reliable shelter that protects against natural enemies.
6. Dead wood removal
Cleaning and destruction of dead wood, stumps and waste left after tree pruning deprives bark beetles of easily accessible food and comfortable habitats.
7. Preventive spraying
For preventive spraying of seedlings against bark beetle, it is necessary to use preparations that can destroy the pest, but do not harm environment: Lepidocid, Boverin, Bitoxibacillin. If they are not available, you can prepare a product based on crude carbolic acid:
Water - 5 liters; 
- liquid green soap - 2 cups;
- carbolic acid - 2 cups.
The resulting solution is diluted with water four times immediately before use. Mature trees are processed immediately after the end of flowering - it is at this time that a massive departure of beetles occurs. After two weeks, spraying is desirable to repeat.
Destructive means
Means used for the destruction of bark beetles are conditionally divided into three main groups: mechanical, biological and chemical.
1. Mechanical
The mechanical method of destroying bark beetles involves the careful processing of each detected passage with a steel probe, made, for example, from a piece of wire. After such an operation, all holes are filled with a special pitch. For its manufacture you will need:
Paraffin - 6 parts;
- rosin - 3 parts;
- vegetable oil- 2 parts;
- a small amount of fungicide containing copper.
To prepare the composition you need:
Melt the paraffin and mix it with crushed rosin;
- heat the resulting mixture to boiling point;
- add vegetable oil and boil for 10 minutes;
- after cooling, mix in a little fungicide.
2. Biological
Biological agents are the most environmentally friendly way to control a pest. They can be used throughout the season - from April to November. But more effective are the treatments carried out in early spring and late autumn.
In autumn, nematodes infect beetles preparing for wintering, eggs and larvae remaining under the bark of trees. Spring spraying with biological products stops the growth of the entire population of bark beetles, depriving them of the opportunity to breed.
3. Chemical
In cases where the bark beetle has already settled on the entire site or destroyed the forest adjacent to it, one cannot do without chemicals pest destruction. The most mild, that is, causing little damage to the environment, is the Clipper insecticide. This is a contact-intestinal type drug. Its action causes paralysis of the nervous system of the beetles and the inability to feed associated with it.
When using the Clipper, be sure to follow the recommended dilution proportions. Highly diluted, it will not give the expected result. It can not be used in the rain and under the scorching sun. The first will simply wash off the insecticide, and the second will make the active substance too unstable. When treating the trunk with Clipper, the drug does not penetrate into the wood, but remains on the bark. Beetles, trying to gnaw through this bark, die. It must be remembered that the Clipper does not act when it hits the beetle's body, but when it is swallowed.
Together with the clipper, you can use another drug - BI-58. It reduces the consumption of the working solution by several times, which makes the treatment much cheaper with the same efficiency.
Pests that have already settled in the trunk are destroyed by the systemic insecticide Konfidor Extra. The principle of its operation is the same as that of Clipper. Unlike the latter, it penetrates the inside of the tree and kills pests throughout the plant. But experts recommend using this remedy not in its pure form, but together with Vitalizer HB-101.
Vitalizer HB-101 is a Japanese drug based on natural extracts of various coniferous plants. Its purpose is to stimulate vitality tree, developing a kind of immunity to pests. It significantly increases the effectiveness of Confidor Extra when used together as an injection.
There are about 750 species of bark beetles from the subfamily of beetles. They literally carve entrance channels in the wood when they hit, causing a lot of problems. These are real pests, and when laid, hundreds of eggs lead to the death of wood, as well as plantings.
The number of pests due to climate variability in Russia has recently increased significantly. In fallen trees and old stumps, beetles create real nurseries. How to deal with such inhabitants of wooden buildings, we will consider in more detail in this article.
What kind of pest is the bark beetle?
It has the following properties:
- Gets rid of mosquitoes, cockroaches, rodents, ants, bedbugs
- Safe for children and pets
- Mains powered, no recharging required
- No addictive effect in pests
- Large area of action of the device
What does a bark beetle look like?
This is a rather unsightly insect with a flat body of 1-10 mm and a recess at the end. The beetle is similar to weevils.
Main characteristics:
- dark chitinous integuments of the skin;
- oblong body;
- short legs.
Beetles like to climb and actively breed in tree trunks, logs, old felled stumps, laying eggs and carving real labyrinths in wood with a complex intricate structure.
I regularly inspect my site, the result makes me very happy! I really liked that it works solar battery. I recommend the repeller to everyone."
Reasons for the appearance of bark beetle in a wooden house
When bark beetles appear, most likely, the house is in a neglected, not well-groomed form or absent on the territory right conditions storage of wood, lumber. It is possible that old trees were felled in the garden and were not removed from the territory in a timely manner.
can stay wherever there is food for them and comfortable living conditions.
Calculating beetles is easy if you look closely. On a cut of a tree, one can see characteristic paths, passages or holes with powdered edges. Of course, wood eventually becomes unusable. It starts to crumble, fall apart and turn into dust.
Signs of a bark beetle in the house
If it's good to look at wooden crafts, then you can see moves with a pile of dust covered next to it. When laying moves on a cut of wood, the remnants of drilling flour are noticeable. If holes appeared on the trunk of a tree, it means that the beetles have already laid their larvae, and soon their numbers will be fairly replenished.
The main signs of their appearance:
- damaged inner layers of wood;
- the presence of holes on the trunk;
- falling off of the bark from the tree, which indicates complete eating by beetles;
- corroded bark when laying passages;
- reddening of needles and spruce fir;
- the audible rustling of larvae in the bark of trees.
You can take an awl and pierce it in a tree. If there was no work, and dust fell down, then the bark beetles attacked and have been there for quite a long time.
Stories from our readers!
“Always used fertilizer and top dressing in his garden. Neighbor said he soaks seeds with new fertilizer. Seedlings grow strong and strong.
Ordered, followed instructions. Great results! We did not expect this! We harvested a wonderful crop this year, now we will always use only this tool. I recommend trying."
How to protect the house from bark beetle?
These pests cannot live without moisture, therefore they are able to completely dry out all the wooden products in the house.
At the slightest suspicion of the presence of bark beetles, you need to:
- inspect all wooden surfaces;
- when holes appear, carry out sanitization by cleaning the wood of dirt and treating it with toxic agents;
- eliminate all rotten stumps, other corroded pieces of wood from the courtyard and simply burn them;
- do not allow the content of wet firewood in the yard if there is furnace heating in the house, because the beetles are very fond of moisture;
- building material must be processed special. solutions and impregnation after sawing;
- annually in the spring to monitor the condition wood flooring and beams in the house;
- after sanitizing, carefully cover all openings; done by beetles.
It is worth carrying out a whole range of measures to get rid of pests in full.
Wood protection methods
If beetles are wound up, then they can undermine trees for years, eventually turning them into dust. Larvae in a tree can live up to 4-5 years, while eating up to 5.5 mm of material per year. The tree rots faster if additionally infected with a fungus.
Ways to protect wood:
- Inject insecticides from a syringe if there are single moves on a tree cut.
- Treat with antiseptics (wax, paraffin) and cover the cracks well.
- Cut out a rotten area in a tree and burn it.
- Freeze or warm corroded areas of tree bark for 2 days at a temperature of up to -15 gr, burn out to +65 gr.
- Drill wood passages and fill the holes with antiseptics (Dichlorvos). You can use kerosene, turpentine, naphthalene gasoline when processing wooden furniture elements.
- After the introduction of the solutions, plug the holes with matches, rags to prevent leakage. Some people use garden pitch or resin for putty, and also cover with drying oil, varnish to form a durable protective layer on the tree. The main thing is to eliminate not only beetles, but also larvae, otherwise all efforts will be in vain.
As a spray, you can use drugs such as Antituage, Wood Healer, or prepare your own composition by mixing carbolic acid with green soap and water. Rotten trees in the house must be urgently disposed of, and possible water leaks in the house should be eliminated, otherwise the invasion of bark beetles can become a real disaster.
Preparation of lumber before construction
To protect lumber from beetle damage, it is necessary to conduct an inspection and preventive measures for another initial stage construction.
Attention! Choose the right wood species. The beetle loves maple, oak, pine, birch, beech and cedar, also wet wood. Therefore, already when buying, you need to look so that it is as dry as possible.
Regardless of the breed of the acquired lumber, it is imperative to apply a layer of impregnation on it. And when buying, take into account the grade of the material.
There should be no cracks, rotten pieces, grooves, holes on the bars or logs. This is especially true for a wild log house that has not been tested by manufacturers. Possible inconsistencies with GOST. Untreated lumber can become unsafe, and bark beetle larvae can reside inside.
Additionally, before using the building material, it is necessary to treat it with antiseptics, eliminate all existing cracks, crack grooves.
As a wood impregnation, you can use:
- table salt;
- sodium fluoride solution;
- varnishes, paints;
- machine oil.
How to get rid of bark beetle?
The beetles are wound up, which means that you need to take action and process all the rotten elements of wooden buildings.
Good and non-toxic preparations:
- Antizhuk. This tool is also used to combat.
- Vectra3;
- Confidor.
It is necessary to pump the chemical composition into the holes from the syringe and, after it is absorbed, cover all the small cracks with paraffin. For these purposes, putty, garden pitch is suitable.
Other processing methods with multiple strokes:
- impregnation of wood with heated drying oil or hot machine oil;
- pouring kerosene with turpentine into the holes of wood products
- sealing with paraffin;
- the introduction of store-bought drugs (Antizhuk, Empire-20).
After the composition is well absorbed, seal the cracks with pitch or vaseline oil.
Means against bark beetle
As soon as the first signs of beetle damage appear on the wood, it is necessary to carry out processing and not wait for the settlement of entire colonies.
- insecticides (Boverin, Bitoxibacillin) with bioadditives;
- Vectra Deciss, BI-58, Confidor, Aktara, Calypsol for processing mainly garden plantings, trees, branches and trunks;
- antipheromones to repel insects.
Vitalizer HB-101
The drug quickly paralyzes nervous system Zhukov. The product is non-toxic, easy to spray, you can spray plantings and lumber.
Phosphine gas
Designed for processing large areas. Quickly destroys eggs, larvae, pupae of the bark beetle. Phosphine is toxic, so you need to wear a respirator when spraying and, of course, it is better to entrust this matter to specialists. It is dangerous to use on your own.
Clipper
The drug is not able to penetrate into the tree. Will quickly kill beetles that are exclusively on the surface. Bark beetles should swallow the proposed drug, since there will be no positive results when sprayed on the body.
tree healer
A low-toxic and affordable drug will help in the fight and for the prevention of insects, but the advantage is located on the surface of the wood.
Folk remedies
Folk and simple ways will be a real help when used together with chemical insecticides.
To get rid of bark beetle suitable:
- drying oil by impregnation of wood after heating up to 65 gr;
- kerosene and turpentine (1x3) for treating surface layers and pouring into holes using a conventional syringe;
- boiling water by pouring into the holes, although there is no guarantee that the beetles will die completely and will not start making their moves again;
- as popular and available remedy popularly also by pouring the solution into cracks, spraying branches, tree trunks.
How to deal with bark beetle larvae?
It will not be possible to completely get rid of beetles if surviving larvae, pupae or eggs remain in the wood. The house is subject to a thorough examination, even with the slightest suspicion that a bark beetle has wound up.
To combat larvae, the best means are insecticides, as potent drugs, and only in the form of sprayers (aerosols). The larvae burrow deep into tree holes and eventually make long passages after becoming adults.
Used to fight steel wire, which must be put into the tunnel and cleaned, thus, from the possible presence of larvae.
- remove all affected areas of the tree;
- pour into the cracks special. solutions or chilled mass of melted paraffin with rosin. For effectiveness, rosin, vegetable oil, fungicide can be added to the composition.
People use diesel fuel or kerosene in the fight against the beetle. Bark beetles are afraid of high temperatures and heating wood over 70 grams, so any way to deal with them by exposing them to heat will be effective.
Of course, it is difficult to process furniture in this way. Beetles are unlikely to leave their places when available comfortable conditions until the tree is completely destroyed.
Before buying lumber, you need to make sure of its quality. A house built from bark beetle-infested wood will not last long. The best remedy in the fight against bark beetles, this is a preventive measure that needs to be carried out long before construction.
The main thing is to buy high-quality lumber, find out from suppliers how it was processed. Also inspect when buying for cracks and inlets on the cuts.
Recommended on time:
- carry out the removal and burning of parts of the tree eaten by beetles;
- do not allow moisture to accumulate in the tree and allow decay processes;
- treat additionally with antiseptics, because there will be no harm;
- use bioimpregnation when protecting furniture from a beetle. It is the application of a layer of varnish that will protect the tree from damage and infection with bark beetles.
The house will stand for a long time if the wood is treated with protective agents.
In case of infection with bark beetles, you should not wait for passages and labyrinths to be made. It is better to process immediately. Usually, residents of their homes do this in the spring at the time of cleaning the local area from junk, in particular, old rotten wooden elements.
How to understand: will the kitten be fluffy?
What kind of light alcohol can be drunk for pregnant women: the consequences of drinking
Why do the legs swell in the ankles and ankles of the feet in pregnant women: causes and methods of treatment
The wedding of Prince Harry and Meghan Markle: scandalous and secret details of the marriage (photo) The future marriage of Prince Harry year NTV
How to close white plums for the winter