Thus, mass appearance of insects wreckers - not the reason, and it is rather a consequence of weakening of the woods. Pest control has to be based on the prevention of flashes of mass reproduction by rational maintaining forestry and only by way of exception - on elimination of already created centers, demanding application of insecticides.
Absolutely other complex develops in dead trees. In roots larvae of bugs weevils, bark beetles, some woodcutters, settle in trunks - some other types of men with a big mustache, rogachy, bark beetles, grinders. There is a set of the mitsetofag feeding on a mycelium and fruit bodies of derevorazrushayushchy mushrooms.
Adult insects winter, having earthed or under a sheet opad. At the end of May — the beginning of June the female postpones yellow eggs, attaching them small small groups to the lower party of leaves of aspens, poplars, willows. After a while there are larvae which at first keep together, eating around pulp of leaves and when grow up — creep away on the single. Approximately in three weeks after hatching the larva pupates, having attached to a leaf by the back end of a paunch. Even days through ten of a doll there is a young bug. The female can soon postpone eggs.
Larvae of the setchatokryly have some characteristic signs. Between a zhvaly and lower jaw from each party the fillet through which the larva soaks up food is formed: at larvae setchatokryly external digestion. At larvae setchatokryly, many of which remind by the form larvae of bugs, never happens mandibular shchupik — even the inexperienced collector can easily determine belonging of the larva found it to group of the setchatokryly by this sign. One feature of an internal structure of larvae setchatokryly is very curious: at them between an average and back gut the impenetrable partition is formed.
Though the huge majority of types of men with a big mustache is connected with wood vegetation as a part of family there are groups which passed to life in treeless steppes and deserts. They replaced thickness of a tree with stalks or pore herbs. Teas when close views from the same family of men with a big mustache in a forest zone develop in wood are known, and in steppes and deserts meet also to the soil at roots of plants. However larvae of the majority of types of family live only in wood, bringing incalculable losses to forestry.
Myagkotelki is totaled by about 4000 types. These are bugs with rather soft covers of a body: wing sheaths which at the majority of bugs are usually firm and strongly sklerotizovana are very weak and flexible at a myagkotelok even. Short moustaches most often threadlike, consist of 11 chlenik.
Panorpidae – family to which Panorpa Germanica belongs. These average size insects (body length about 13 mm) keep usually in the background, in damp places. A panorpa body dark, brown, wings at the sitting insect plainly are put on a back; their drawing has an appearance of the wrong dark cross strips. At a male the reinforced end of a paunch of red color.
Widely known German skorpionnitsa belongs to Mecoptera group. Skorpionnitsa are rather close to the setchatokryly. For representatives of this group, as well as for setchatokryly, existence of two couples approximately equally developed transparent mesh wings is characteristic, is more often with the wrong spots.
Bugs usually eat leaves a plant, most often pulp between veins, and for the fodder plant postpone eggs. Larvae continue to eat also. as well as their parents, quite often putting to a plant serious damages. On leaves many types pupate, and some days before an okuklivaniye of a larva are suspended headfirst as it is done by larvae of ladybugs.
Panorpa quickly enough, but reluctantly, on short distances, from a tag on a branch fly. Adult panorpa, contrary to a popular belief, do not attack live insects, but willingly eat their fresh corpses, do not disdain also meat of corpses of vertebrate animals, often exhaust nectar of flowers.
Bugs, representatives of Cantharidae families (myagkotelka), Coccinellidae (cow), Cerambicidae (men with a big mustache), Chrysomelidae (listoyeda), Attelabidae (), Curculionidae (elephants), Elateridae (shchelkuna) were the most numerous assembled.