It is not uncommon for the construction to be made of damp wood, without impregnation or badly secured. These are the most common causes for the appearance of wood pests. The most dangerous species of wood pests destroy wood for several generations. Sometimes this leads to its complete destruction.
Liquidation of wood pests with microwave technologies is possible even in this places, where chemical agents are ineffective or cannot be used -  more
No method of pests liquidation (fumigation, chemicals, microwaves) prevents them from re-attacking. The only solution is impregnation of all wooden elements.
Only comprehensive action (disinfestation + impregnation) will ensure peace for a long time.

There are pests in the wood if:
The most common wood pests:

Kornik Termity Kołatek domowy Spuszczel Wyschlik grzebykorożny Tykotek pstry Miazgowiec Parkietowiec Zmorsznik Czerwony Barodziej cieśla Kopalinek
common furniture beetle hylotrupes fan-bearing wood-borer deathwatch beetle powder-post beetle red-brown longhorn beetle ergates faber rhyncolus culinaris cerm striped ambrosia beetle

- several dozen species live in Europe. Beetles up to 10mm long have a dark brown or black color. The larvae are light gray or white, with a brown head. Maggots are white.

- are a very dangerous pest for construction timber. However, they feel best in a climate with very high humidity. Europe's climatic conditions are not conducive for them.

Common furniture beetles
and hadrobregmus pertinax - is a beetle with a length of up to 6mm. Larvae feed on processed wood, both coniferous and deciduous. They drill deep tunnels with a diameter of 2-3mm. The second visible effect of their activity are the piles of wooden flour under each hole. The insect's lifespan is several years. The best conditions for insect's living and developing is at a temperature of about 20 - 25oC and humidity of 60 - 80%.

- both adults and larvae reach a length of 20 - 25mm. it lives exclusively on the processed wood of conifers: spruce, fir, pine and larch. The larvae bore tunnels up to 7mm in diameter. In pine and larch wood the tunnels are drilled only in sapwood.

Fan-bearing wood-borers
- lives in Europe, Siberia, Asia Minor. Feeds and lives in dry wood of deciduous species. It also settles in buildings, furniture, sculptures, farm equipment etc. In Europe it lives several years, but not less than two. The beetle has brown color and a body length of up to 5mm. males have characteristic tentacles in the shape of combs.

Deathwatch beetles
- it develops in the dead wood of deciduous trees (oak, beech, alder and others) and coniferous (mainly pine). The condition of the wood does not matter. It can be damp and strongly molded or without signs of fungi. It does considerable damage to old, historic buildings. It is dark brown, covered with thick, short hairs that create the impression of of lighter patches. Beetles and larvae reach a length of up to 10mm. Beetles appear from the end of April to June.

Powder-post beetles - is a beetle with a length of up to 5mm and a brown color. Larvae are white, the grubs have delicate hair on their bodies. It likes the sapwood best. Corridors, diameter of about 2mm, are clogged with the wood processed into a flour. It destroys mainly deciduous wood (oak, ash) from which parquet, wood paneling or furniture are made. It also does not despise the unprocessed wood. It lives in the wood until it is completely destroyed.

Red-brown longhorn beetles
- has a length of a 10-20mm. its colors vary from orange to red. It is believed that it lives mainly in the forest, but it also inhabits wooden elements that have not been protected from moisture or fungi. His favorites include coniferous wood species in which it does considerable damage. Larvae drill holes most often along the fibers, filling them with wood flour, chips and droppings. Due to the feeding in wet wood, chemical protection of the material as well as attempts to destroy them using chemical agents are not effective.

Ergates faber
- is a large beetle with a length of even up to 60mm. it is characterized by dark coloration in shades of black and brown. Larvae drill tunnels with a diameter up to 3cm. Large wood chips and excrements can be found in the tunnels it feeds mainly in old, moist trunks, that have not yet been occupied by mushrooms.

Rhyncolus culinaris Cerm
- belongs to the Cossonidae family. Under the thin outer layer of wood, the beetle and its larvae drill tiny tunnels. It attacks relatively recently cut down mining wood, it likes sapwood with nutrients. It significantly reduces the strength of the wooden constructions.

Striped ambrosia beetle
- is a pest from the bark beetle family. His body is about 3mm long. Mostly it settles in the freshly cut down coniferous wood in the forest. It can be met in the wet or badly dried stored wood. It very quickly shifts to the neighboring parcel of wood in the wood storage site. The striped ambrosia beetle drills the entrance gate to the interior of the wood, from where the legs are formed parallel to the trunk perimeter.

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