Woodworm

Like termites (isoptera), the beetle (coleoptera) belongs to the category of wood-eating insects. It infects live, half-dead, sick, burned, drought-stricken or dead trees, as well as wood that has been fully processed and placed in structures, furniture or wooden objects. The damages caused by the worm, range from tiny holes in the surface of the wood, to a reduction in the structural integrity of the wooden parts of a building, furniture, etc. The problem is that these damages are usually perceived by us when the damage is already very advanced.

The Greek worm is Anobium punctatum, with a lifespan usually 2 to 4 years in the form of a larva. It is 6-7 mm long and is grayish white with white hairs. It spends its entire life in the wood, forming circular galleries 1-2 mm in diameter, full of sandy sawdust that also contains feces. When it matures, it comes out through round exit holes created by chewing wood.

Fumigation

The final extermination of the plague takes place with the method of fumigation (fumigation), which frees our space from all wood-eating insects, in all their biological stages (egg, larva, perfect insect). Fumigants are substances that act in the form of gas, have excellent penetration and at certain temperatures and pressures become lethal to insects and rodents. Due to their nature, the gases penetrate the mass of wood, causing the death of insects.We use them when we can not control an entomological infestation with other repressive methods and in places such as horizontal warehouses, cottages, containers, silos, wagons, ship holds, empty spaces, home furniture and media where it is impossible to use other insecticides. The main ingredient in fumigants is phosphine, an insecticide (fumigant) released from aluminum phosphate and magnesium phosphate.It affects the cellular metabolism of wood-eating insects either by the body or by the respiratory tract. The action of phosphine lasts from 3 to 10 days, permanently killing the insects. All fumigants must be used by qualified scientists and an excellent knowledge of their properties and safety measures for humans and animals is required. For maximum effectiveness, a comprehensive disinfection & hygiene program should be implemented, which concerns prevention, control and control-treatment.In any fumigation application, what is most important is the good closure of each room, so that we do not have a gas leak. For this purpose, special multilayer nylons are used that do not allow the gas to escape.

Chances of wood infestation by insects

To understand the reasons why hummingbirds such as fleas infest various wood species, it is essential to consider the key factors that contribute to this infestation:

Moisture content As the wood dries, it reaches excellent (for wood-eating coleoptera) moisture levels. When the moisture content reaches 12-15%, it becomes a more likely food source for insects.

Chemical substances

It has been observed that wood-eating coleoptera, such as the flea, like various chemicals contained in wood. Many groups of insects are able to digest cellulose, while a smaller percentage of lignin is consumed. Other insects meet their nutritional needs with the starch and small amounts of sugars contained in the wood, while some are likely to assimilate small amounts of protein.

Condition of Wood

After our extensive exposure to moisture, the wood decomposes and becomes more vulnerable to attack. Whatever fungus has infected the wood, the decomposition of its cells facilitates the penetration of the larva

Attack characteristics of wood-eating beetles

When we talk about wood-eating beetles, we must distinguish the infestation remnants of a wood found in the forest, from the signs of action in residential areas. This can be done easily based on two criteria:

01. The wood in the galleries with the holes of the “pin” or the “fragments” is colored (usually crimson). This coloration is caused by fungal residues, which wood-eating forest beetles use as food. On the contrary, the galleries of the wood-eating beetles of the inhabited countries, such as the moth, are light-colored.

02.The galleries of the former are empty, while in the residential areas the galleries of wood-eating beetles are usually full of sawdust.


Insecticide Gel

In cases where we can not intervene with fumigation to combat wood-eating insects on floors, wooden ceilings, etc. we apply insecticide gel. Insecticide gel is a specially designed wood preservative that contains insecticide (permethrin) for the preventive and therapeutic treatment of insects that infect wood, including termites. The gel offers excellent penetration, even in hardwoods. It has thixotropic properties that make it easy to apply without dripping.

The product is ready to use and can be applied by a) spray b) injection and c) coating. The depth of penetration depends on the type of wood and ranges from 3 – 6.5 cm. For the application of the gel in many cases it must be preceded by sanding the wood when they have been applied with varnishes that create a crust on their surface (floor varnishes). In this way we achieve better penetration. After each gel application, the wood can be processed as you wish (painting, varnish, etc.). The advantage that the gel gives us is its residue which protects the wood from future infestation for several years.