How to process wood from bark beetle folk. Choosing the best remedy for bark beetle

13.06.2019

How to kill a bark beetle

Bark beetles are common forest pests related to stem pests. Beetles of this subfamily are widespread in our country. climate change, fires, bad system forestry services - all this contributes to their even wider expansion.

Species specifics

All insects of this species feed on plants, but the greatest threat to humans is arboreal. The females of these beetles penetrate tree trunks with their whole body, building winding passages there and producing offspring. In one season, two generations of insects are born, due to which the population grows three times every year. It is the larvae that cause the main harm to the attacked tree; in order to turn into a full-fledged adult insect, they must eat well, the source of nutrition is the soft internal tissues of the tree. Internal destruction leads to the inevitable death of trees even before the onset of autumn.

Human danger

How does the activity of the bark beetle affect a person? Often for building residential buildings, agricultural and domestic buildings used already infected forest. pest beetle prefers to settle and breed in 50-70-year-old spruces and pines, which are the main object of the construction industry. A log house built from timber, in which beetle larvae are located, will quickly become unusable. Such a house can not defend due date, the vigorous activity of the larvae that have not stopped their development will lead to premature destruction of the supporting structures, subsidence of the house and its partial deformation. If pest passages are found, it is important to kill the bark beetle before it causes irreparable damage to the building.

Prevention of bark beetle

Carefully inspect the lumber purchased for building a house. Discard those that show small oval holes (beetle entry) and sawdust flour next to them.
Many dangerous pests like to settle under the bark, so it must be sanded and burned. Use only edged boards.
Soak the lumber with special solutions designed to repel insects. Perhaps already at this stage it makes sense to turn to specialists so that they professionally process the house or materials for it.

Most importantly, do not leave the logs unsanded for a long time. If construction has to be postponed for any reason, treat the materials with garden pitch.

Signs of a bark beetle infection

Any homeowner should be attentive to his home and pay attention to traces of the presence of pests.

If you find signs of the presence of a beetle, check how badly the element of the building is damaged. To do this, take an awl and try to pierce the tree with it at the holes. If the awl easily entered to a great depth, then the bark beetle has already thoroughly worked on the construction.

It is even easier to find a bark beetle in elements made of unedged wood - just remove the bark and you will see the passages, and possibly insect larvae. If the bark does not exfoliate with difficulty, most likely the pest did not have time to greatly destroy and settle in the building.

Bark beetle in the house: how to deal with a pest

A solid wooden house is the pride and property of the owner. And the architectural monuments that have survived to this day testify that with the right approach to construction and proper care, they can stand for centuries. It is only important to respond quickly to the invasion of pests.

In order to kill the bark beetle operating inside the trunks that formed the basis of the building, it is necessary to treat them with insecticides. Chemicals are still the most effective tool from these harmful insects. And if strong insecticides are enough to kill cockroaches or bedbugs, due to the open lifestyle of insects. Getting rid of the bark beetle without the use of special equipment that facilitates the access of chemicals to the infected zones is simply indispensable, especially if the building is infected on a large scale.

A specialized service will help save your home and, if the pest was noticed after the construction of the building. You need to act for sure and as quickly as possible, only this will stop the appetite of the beetles. Rely on yourself and seek folk recipes from a bark beetle, when it comes to saving a home, at least unreasonably.

Thorough chemical treatment of the top layer of wood, stem injections with insecticides are the only adequate methods. fight against bark beetle in home.

Recently, more and more often you can hear about microwave treatment from a beetle, that it completely kills insects, that it is harmless, but all this is far from being the case. Let's start with the fact that the technology is not certified and is not allowed for use. Everyone is familiar with unique ability Microwave radiation fry all living things, but which layer does the effect of radiation penetrate, how effective and safe is it. In addition, in the hands of an amateur, such a device is simply dangerous.

For the treatment of small areas of infection indoors, it is possible to recommend such safe recipes from the past, like drying oil, linseed oil, from modern means pay attention to acrylic antiseptics. Never use alkyd products for interior treatments.

Bark beetle in the bath, in the sauna

Wood is used less and less for the construction of residential buildings. High competition natural material are foam concrete, brick, building panels. But a traditional Russian banya or a Finnish sauna is built only from wood, so these buildings most often need professional treatment from bark beetles.

The processing technology is the same as in the case of infection at home. But first try determine the cause where the pest appeared. If the bath is old and has stood for many years. Perhaps the insects came to the bath from the nearby forest, where they actively bred, or you were updating some elements of the building from low-quality building materials.

If there are few pests, wood varnish will help protect the log house from destruction, cover the entire log house with it completely, so you will deprive the larvae of the opportunity to breathe, preserve them inside.

On the forums, you can often find recommendations to treat the bath with a kerosene-turpentine mixture, but doing this is dangerous even with inside the buildings. Such treatment will make an already flammable building very easy prey for a fire.

The preparation for disinfection and preservation of wood must necessarily meet the following requirements:

Be safe for people (do not cause negative reactions) and environment(do not poison).
The agent should not impair the mechanical and physical properties of the material.
If possible, the preparation should not significantly change the color of the wood.

Only if all these requirements are met, the drug can be used for treatment at home or baths, saunas.

Amazing architectural monuments were built long before industrial production insecticides, but every master knew how to protect his work from pests. Many architects had their own unique recipes, kept in deep secrecy, they were inherited, so most of them have not been preserved. To protect buildings in the old days, a mixture of three vegetable oils was often used - linseed, rapeseed and hemp. Repeat the procedure and every five to seven years carefully wipe the surface of the log house with a cloth soaked in a mixture of oils.

Rapid destruction of the bark beetle

Experienced exterminators will find the optimally safe and harmless product, the effectiveness of which you will quickly appreciate.

Advantages of modern insecticides:

High activity against bark beetle;
IV-V hazard class;
Impact on both adult beetles and larvae;
Easy penetration into the pores of the tree;
No harm to human health and environmental parameters of the structure.

As a general rule, most bark beetle remedies need to be heated to make them easier to penetrate into dense wood, this ensures that the decontaminant reaches the larvae. Specialists for these purposes have special equipment that automatically heats the composition to kill pests and splits it into tiny pieces, thanks to which the components easily reach the very core of the logs, destroying insects even in the deep layers.

To fix the surface treatment, the master injects insecticides into the damaged structures.

As a result of such a double impact, insects die right in the inner layers of materials and stop destroying the house.

The bark beetle poisons life not only for the owners of wooden buildings, but also for gardeners. This beetle is one of the most dangerous and common pests. Inspect all the trees in your area. If you notice that a small hole has appeared on the tree, surrounded by wood dust, it means that a bark beetle has come to your garden. From these small holes in the tree trunk, considerable problems will begin: there is no guarantee that the bark beetle has not damaged the core of the tree. To check your guess, you need to pierce the bark of a tree near the holes with a sharp knife: if there is a void, it's time to start a war against the beetle. To do this, cut out the damaged area, grabbing healthy tissue as well. Everything that is cut must be burned at the stake. So you can get rid of a bark beetle that has just come to your site.

However, if the beetles appeared on your site in in large numbers and managed to pretty much damage the tree, you will have to urgently remove the tree, otherwise the pests will start to sharpen neighboring plants, and then wooden buildings.

Preventive treatment of trees

This measure will save you from possible future troubles. It is necessary to spray seedlings with special solutions as soon as possible. You can apply Boverin, Bitoxibacillin, Lepidacid for processing, which destroy not only bark beetles, but also other equally dangerous pests: beetles, bugs and butterflies. If it is not possible to buy such drugs in the store, you can prepare the solution yourself. To do this, you take half a bucket of water, add about a liter of green liquid soap and two glasses of crude carbolic acid. A mother solution will be obtained, which must be diluted with water in a ratio of 1:25 before use.
In addition, prevention is also the right choice. land plot where the soil is not deficient in moisture and nutrients. The land must always be kept in order, fertilized, cultivated and dug up without fail. Trees - clean and shape in time.
Helps and spring annual preventive treatment garden trees. To do this, they make a mixture of clay and manure or slaked lime and manure and coat tree trunks with it. If we are talking about old plantings that have already been invaded by bark beetles, then these procedures must be done several times in a row.
After harvesting, the leaves should be collected on the site and burned. It is also desirable to free thick tree branches from dead bark. The bark must also be burned.
Fire must destroy the remains of trees, stumps, dead wood.

Features of bark beetles
These pests are terrible enemies of garden trees. Their main food is wood. In addition, they can be carriers of a fungal infection that deprives the living tissue of the tree of nutrients.

Young trees that have never been prophylactically treated also often become victims of beetles. Bark beetles have a well-developed sense of smell, so they accurately select the weakest trees, easily penetrate the center of the trunk, and make moves there. The tree quickly dies as a result of their destructive work.

How seriously the plants are damaged by beetles can be understood by looking closely at the sawdust near the holes: if they have Brown color, - means that bark beetles are under the bark, if sawdust white color, - so they are already operating inside the trunk. By the way, there is another sign of the presence of bark beetles: such trees are usually chosen by woodpeckers.

How to get rid of bark beetle

With steel wire. This mechanical way looks like that. With a piece of wire, you need to “examine” all the moves made by pests in the tree trunk. After that, the tree is treated with insecticides. This measure is especially effective in the season when bark beetles appear from under the bark. As a rule, this time coincides with the end of flowering trees. And you can continue until the end of August.
Processing with hand-made garden pitch. First of all, you need to cut off all the sick and beetle-turned branches. Next, we make the composition for processing: for this, it is necessary to melt 6 parts of paraffin, mix it with 3 parts of crushed rosin and heat this mixture to a boil. Add 2 parts to it vegetable oil and boil for 10 minutes. Let this remedy cool down. Add some fungicide containing copper. With this tool, treat all parts of the tree gnawed by beetles. Pests that are on the surface of the trunk, collect and burn.

How to get rid of the bark beetle in wooden buildings
They say that the bark beetle is capable of causing the same irreparable damage to a wooden building as a fire. It is imperative to fight this pest in all possible ways: dry the wood, impregnate it with antiseptics and fire retardants, look for and apply other protective measures.

Finding a bark beetle in a wooden building is not difficult: it is given out by heaps of white dust. As soon as such affected places are found, they must be immediately cut out and set on fire.

The fight against the beetle must be carried out in a certain sequence. First of all, you must determine how large the degree of destruction of the building. To do this, take a sharp knife or screwdriver and pierce the suspicious area. If it does not pierce, then you can get by with processing, if the tree has become pliable - this area must be cut or sawn out and burned.

Wood processing
Primarily, wooden elements should be cleaned of dirt, remove dust with a vacuum cleaner. Protect electrical wires plastic wrap, a thermal insulation materials delete before processing is complete. People involved in these works need to put on goggles, a respirator and start processing.

We heat the drying oil to a hot state and apply it to wooden surfaces. You can combine the useful with the pleasant: the beautiful structure of the tree will sparkle even more if you use linseed or used machine oil, kerosene instead of drying oil.
If the beetle is already chewing on some wooden products, you can treat them with a turpentine-kerosene mixture (3: 1). With this tool, fill the holes made by bark beetles, and then “seal” with paraffin. It is advisable to anoint all adjacent sections of the wooden structure with vaseline oil.
If the texture of the structure is not important for you, clean the wooden surface of dirt and fibers with a stiff brush. Then treat the tree several times with hot drying oil so that it gets into each hole gnawed by the beetles. There are probably bark beetle larvae in there.
Will be effective and processing wooden surfaces insecticides such as Empire-20, Antizhuk, Antishashelin. They penetrate the wood and protect it for a long time. Apply these drugs in an even layer so that they penetrate into each hole and destroy all beetles and larvae. Too abundant, with drops and streaks, this layer should not be.

The fight against the bark beetle, if it wound up in your home, should be taken very seriously. The fact is that these small insects are able to destroy the structure in just 5 years. And then you will have no choice but to demolish your house.

Bark beetles cause a lot of damage to buildings, furniture, garden trees. Therefore, if you find small brown or black bugs, you should definitely try to get them out. You can use special impregnations, spraying, and sometimes it can help even ordinary whitewash(for trees in the garden). However, disinfection and sanitation professionals use stronger products that can destroy not only adults, but also babies, larvae and other breeding grounds.

What is the harm

The problem of wood damage can be not only in improper storage or maintenance conditions at home, built of wood, but also in bugs, which are usually planted in such houses. They may appear in warehouses where boards or logs are stored, in gardens where trees and shrubs grow. In a word, wherever there is something wooden, because it serves them as food, as well as for building their nests and raising offspring.

Usually such a beetle chooses the most weak, diseased tree or old furniture , floorboards, ceilings, or noticeably aged sections of log walls that are not protected by any coating. It is easy to understand that you have an insect that loves wood - just look to see if there are such peculiar paths or small holes on it, which are usually lightly powdered around the edges, dusted with wood dust. If you do not remove such bugs, then the tree (or wooden product) will soon will lose its strength and integrity.

What chemical remedies for bark beetle work most effectively

Despite the many means for removing the bark beetle, chemical preparations are still the most effective. True, one should be careful here when choosing means for processing garden trees or a log house. There is a difference between a living tree or a tree already processed in construction. For the garden, sparing substances are usually used., and for furniture or wooden walls or floors - insecticidal poisons.

The new generation tool "Confidor Extra" perfectly copes with all types of beetles that attacked your furniture or trees in the garden. The main characteristics of such a substance include the following parameters:

Manufacturing company - Bayer (Germany).
Produced in the form of VDG ( water-dispersion granules).
The active ingredient is imidacloprid (700 g per 1 kg of the entire preparation).
Packaged in bottles of 400 gr.
In order for the drug to actively begin to act specifically against the bark beetle, it is required to consume the drug at a rate intended for the destruction of beetles that eat cereal grains - 0.07-0.1 kg per 1 ha of land or 0.3-0.5 g. for 10 liters of water.
It does not pose a toxic hazard to humans, animals and even plants - III hazard class (low toxicity). But for beneficial microorganisms it is in hazard class I (highly dangerous). This suggests that he can hurt useful properties soil in the garden, therefore, when processing trees, it is better to protect it with some impenetrable material.
Can be combined with other fungicides.
Active within 2 or 4 weeks.
Valid for use within 3 years from the date of release from the factory.
Approximate market value 4620 rub.

Due to the contact action on the intestinal system of insects, Confidor has kills adults or larvae from within their body. The tool is recognized as universal, and therefore it can also be used against gnawing grain and seeds, as well as against insects that destroy potatoes and other tuberous crops.

Of the organic compounds belonging to a certain class of chemicals - organophosphorus, there are good remedy against beetles - "Bi-58". Its characteristics include the following features:

Production German company BASF.
Form of manufacture - emulsion concentrate.
Packed in a canister of 1 l, 5 l. and 10 l.
The active main component is dimethoate.
According to the class of danger for people, it is in group III - low-dangerous. According to the hazard class for bees - I (highly dangerous).
The shelf life of the drug
Average cost for capacity in 1 liter - 770 rubles, for 5 liters. - 3850 rubles, for 10 liters. - 8750 rubles.

The drug acts like intestinal pesticide, and therefore its damaging effect begins after the beetles swallow, along with food, particles of a sprayed, poisonous substance for them.

Multifunctional complex "Vitalizer NV-101" has a beneficial effect on the active growth of plants, and also creates an increased effect of the resistance of trees or shrubs to various diseases and pests. Main product characteristics:

Out of the factory in the form of a liquid (solution) and granules.
Packing volume of granules - 10-1000 gr., liquids - 6-1000 ml.
active substances - active extracts from Japanese cedar, pine, plantain and cypress.
It belongs to the group of growth stimulants with protective properties against harmful insects, fungal spores and bacteria.
Zero toxicity- is a completely environmentally friendly material for the processing of garden trees. Therefore, it does not harm plants, bees, or microorganisms in the soil composition.
The approximate price of granules for 10 g is 152 rubles, 1 kg. - 3832 rubles. Average price per solution volume 6 ml - 150 rubles, and for 1 liter - 13597 rubles.

It is also noted that the Vitalizer perfectly allows plants to increase their resistance under difficult weather conditions. Increases productivity and nourishes trees.

Furniture, wooden buildings or boards laid for storage can also be treated with an insecticidal preparation such as Clipper. Commodity characteristics of the substance:

Manufacturer - FMRus company (Russia).
Produced in the form concentrated emulsion.
The container volume is 5 liters in a canister.
Active substance - bifetrin(100 g per 1 liter of ready-to-sell drug).
The method of using this remedy against bark beetles has so far been recognized as experimental. But since 2013, this substance has been successfully treated against such bugs. Kremlin firs in Moscow, trees in the Alexander Garden, as well as seedlings and seed trees in numerous Russian nurseries.
Protective the effect lasts 2-3 weeks.
The shelf life of the product is up to 3 years.
Cost per 5 liters on average - 13900 rubles, and for 1 liter - 4400 rubles.

The drug was developed specifically to combat chewing insects(for example, such as bark beetle typographer), as well as with suckers (pests, for example, strawberries and tomatoes - weevils). An emulsion against such a bug is prepared as follows:

for felled forest and protection of wooden products consumption - 40-60 ml of solution per 1 sq.m..;
for live(growing) tree - 2.5-5 ml per 1 sq.m. trunk.

emulsion diluted in a certain proportion, then, the resulting solution spray or brush over the wood or tree bark. How to prepare a working solution specifically against bark beetles, you should be interested in the instructions that came with the drug. Or check with a retailer.

As an excellent antiseptic, SENEG INSA can be perfect Russian company "Senezh". This product has proven itself since 2012 and is still in great demand among woodworkers. The subtleties and features of its characteristics are as follows:

Produced in the form concentrate without color.
The container in which the goods are packed is either a barrel (60 kg) or a canister (5 l).
The concentrate is water-based, so it does not change the color and texture of wood.
It acts by deep penetration into wood pores, leaving traces of its active ingredients there for a long time.
Non-toxic (class IV - low-hazard substance) and fireproof.
Store it for 12 months after the date of manufacture.
The effect lies not only in the preventive properties against the formation of pathogenic bacteria and the presence of bugs, but also destroying pests at all stages of their development.
It is used not only for the processing of sawmill materials and raw materials, but also for the protection of furniture, wooden walls, panels and also garden trees.
Approximate price - 3960 rub. for a barrel and 600 rubles. for canister.

It does not matter whether this preparation is used in a woodworking industry, a sawmill, or in your garden or home, it has the same effect everywhere - to destroy pests and protect against the formation of fungi and mold on wood.

Destruction of the bark beetle:

All photos from the article

natural wood has many obvious benefits compared to other building materials. These advantages include affordable price, low thermal conductivity, environmental safety, simplicity machining etc.

The list of advantages of lumber can be continued further, but there is a significant drawback that makes us look at the use of wood as the main one in a new way. building material. We are talking about low resistance to a biological factor, for example, to bark beetles.

In this article we will talk about how to deal with bark beetle in wooden house and how to achieve significant success in this difficult task. But before deciding how to get bark beetles out of wooden house, consider how dangerous these insects are and what damage they can bring.

Basic information about the pest

Bark beetles are beetles small size(no more than 8 mm), living in the cortex and upper layers wood.

Most of the life of an insect takes place inside a tree. The insect makes an entrance hole in the bark, penetrates into this hole and gnaws out passages where eggs will subsequently be laid. Beetles are prolific, and therefore infection is a particular danger.

Among the signs of wood infection with a bark beetle, we especially note the appearance of drilling flour in certain areas of the lumber surface. Another sign is a scattering of open holes with a diameter of up to 2 mm.

If you find certain signs of insect activity, it's time to learn how to destroy the bark beetle in wooden structures and carry out these tasks immediately.

by the most simple solution in this situation, a specialist from the local sanitary and epidemiological service will be called.

A specialist who has in his arsenal different kinds insecticides and sufficient experience in their use, will certainly solve the problem of the dominance of bark beetles. But, unfortunately, the price of the service will be considerable, so we will try to deal with the beetle on our own.

Effective wood protection methods

If you are faced with the question of how to destroy bark beetles in a wooden house, then most likely you will have to use one of the methods listed below.

Application of specialized protective coatings;
Application of specialized protective impregnations;
Application of working off (used engine oil) is a “grandfather”, but nevertheless an effective method;
Impregnation of the surface of lumber with carpentry varnishes and oils;
Impregnation of the surface of lumber with kerosene or white spirit;
The introduction of antiseptic solutions with a syringe directly into the holes made by the beetle;
Surface tapping wooden product and subsequent drilling of holes to damage the passages of the bark beetle (an antiseptic is introduced into the holes made);
Carrying out disinfestation with the use of specialized insecticides and equipment necessary for their use (application of aerosols, use of cold or hot fog generators, etc.);
The use of a number of pyrotechnics, including insecticidal and sulfuric checkers;
Permanent use of fumigator spirals "Fumitoks", "Raptor", etc.
Impact on sawn timber by critical temperatures (freezing and heating);
Cutting out the damaged section of lumber;
The use of pheromone traps.

Preparation of lumber before building a house

In order not to look for a solution to the question of how to get the bark beetle out of a wooden house, it is necessary to fight it in advance, namely, before the start construction works.

The instructions for dealing with bark beetles before the start of construction work are as follows:

When purchasing lumber, we carefully monitor that there are no signs of infection on their surface. As already mentioned, infection can be determined by small oval holes or by a small amount of sawdust flour.
If infected lumber is found already during construction work, we sand the wood in order to find out how serious the damage is.
If the passages are superficial, we inject antiseptics, but if the passages are deep, then it is advisable to burn the wood. The fact is that if the affected lumber is used in construction, in a few years the beetle will destroy the entire log house.
For preventive purposes, lumber purchased for the construction of a house is impregnated with special antiseptic preparations (“Antizhuk”, “Antishashelin”, “Wood Doctor”, “Empire-20”, etc.).

Tip: Used engine oil can be used as impregnation and wood used for the construction of non-residential facilities.

Fighting a beetle in an already operated house

You can fight wood infection with your own hands, but you need to understand that you will have to do this until all bark beetles die out, including those generations that subsequently hatch from eggs.

Preparations for the fight against bark beetle

Instructions for removing a beetle in an already operated house can be carried out in the following ways:

In case of detection of single holes eaten by insects, special insecticides should be used., which are sold in the finished state pumped into syringes.
We insert the syringe into the hole and pump the liquid into it until it appears from the outside. Often, if the passage eaten by the insect is large, a whole syringe of insecticide can go away.
After a certain time, it is advisable to repeat the wood processing procedure.

Important: In order for the introduction of the insecticide to be effective, after each injection, the hole should be plugged with a match. This is done so that the solution does not leak out, and so that the beetles do not come out.

If the damage is significant, which are applied in several layers. The lower the density of lumber, the more layers of the agent will have to be applied.
If the wood used to build the house is not dense and hard enough, deep penetration strengthening impregnations can be used.. Such preparations penetrate into the pores of lumber, fill them and polymerize. As a result, the wood becomes denser and it is more difficult for the bark beetle to make its moves in it.
At the end of processing, lumber must be coated with one or another paint and varnish coating., which form a dense film on the surface of the tree.

Such a measure will not allow beetles to gain access to the tree from the outside and at the same time will become a significant obstacle to the comfortable life of insects that may have remained inside the lumber.

Conclusion

Having built or timber, you can safely live in it without tiring yourself with fears about bark beetles. But such carelessness can lead to partial or complete destruction of the building. Living in a wooden house, you must always be on the alert and, if necessary, repel potentially harmful insects.

More useful information you can find by watching the video in this article.

Do not attribute the rustling in the silence of the night to the tricks of the brownie. More likely wooden frame the bark beetle regales itself. Carefully inspect the walls, attic. Small holes in wooden floor, window sills and even on wallpaper, covered with wood dust, they say that a pest has settled in your house or bath.

You will have to clear the walls of coatings and examine the wood. The work is going to be difficult. But it's stupid to keep interior decoration if the wall loses its strength and the destruction of the house occurs. Single holes indicate minor damage. The larvae of the beetle make passages in the wood, as a result of which it becomes unusable. Check the wood for strength. This can be done with a sharp screwdriver. The affected area should be cut out and burned. Adults die when the affected area is treated with Dichlorvos. Processing should be carried out several times with an interval of 10 days. To destroy the larvae, the antizhuk biocidal agent is used. The composition is injected into the wood by injection in those places where exit holes are visible. Then, with a brush, apply insecticide to the entire surface of the wood. Processing is carried out 2-3 times every 3 days. This method is ineffective for extensive lesions. The greatest effect is given by spraying insecticides indoors with hot and cold fog. Such processing is performed using special generators and requires skills. If the generator is used incorrectly, the treatment will not be effective, and you may get poisoned. Contact the experts, but first prepare the room - remove the finishing coatings from the walls, clean the dust. Dry for several days. To do this, use heat convectors and ensure sufficient ventilation. After processing, soak for two days and ventilate the house well. Wood is a tasty morsel not only for the bark beetle. Beetle relatives - a driller, a weevil, a grinder will gladly settle in your buildings under favorable conditions. Favorable conditions are high humidity and the lack of protective impregnation for wood. Use for building only quality wood. Lumber must be freed from bark. Healthy wood is distinguished by its appearance. For long-term storage, treat the wood with insecticides.