Mites of the group of invertebrates belonging to the class Elizarovykh. The group is divided into three companies: Acariformes, or true, ticks, Parasitiformes ticks and mites opiliones. Most ticks one of the first two units, the third squad presents a small number of species.
Just described about 1400 childbirth and several thousand species of mites.
Mites are common across the globe, are found in all geographic areas. A large part of the mites live in soil, forest litter, nests of birds, the holes and lairs of animals, and some species live in fresh waters and the sea. Eat ticks decaying remains or parasitic on animals, and plants; there are ticks-predators.

1 and 2 - exode;
3 - argassy;
4 - krasnosilka (larva);
5 - the itch Sudan; 6 - Jeleznitsa acne; 7 - grain mites.

Especially great medical and veterinary importance mites. Carriers of pathogens are blood-sucking Parasitiformes ticks (Ixodes, argatova, gamasoidea) - ectoparasites of humans and animals. Not only can they pass to the various pathogens of diseases of animals and humans by the bite, but preservation of pathogens in their body, passing them on to his descendants through the egg (transovarial). Ixodes ticks (Fig. 1 and 2) transmit and store the virus of tick-borne encephalitis (see) And haemorrhagic fevers (see), rickettsiae - agents of tick-borne cyproterone fevers. It is proved that ticks long-store bacteria tularemia (see), brucellosis (see) and the plague (see). Argatova ticks (Fig., 3) specific carriers spirochaetes tick return typhoid (see). Stings gamasoidea mites in humans, there dermatitis; these mites are specific carriers vezikuleznaya ricketsiosis (see) and other
Among acariform mites largest value in the transfer of infection have ticks-krasnoselki (Fig. 4), the larvae of which infect humans fever , tsutsugamushi (see).
Many of acariform mites after contact with skin, causes itching, phenomena dermatitis.
Scabies mites - intradermal parasitesthat cause human and domestic animals scabies (see) (Fig. 5). Zheleznitsa acne (Fig. 6) parasitizes in the hair bags and the skin glands of animals and humans and causes zeleznicna scabies.
Tyroglyphoidea mites can dust to get on the mucous membrane of the upper respiratory tract and cause the person Qatar these ways.
Many ticks harm plants, destroy and spoil the reserves of grain, flour and other food products (see Pests of grain and grain products). An example of bread, or tyroglyphoidea, ticks (Fig. 7).
To control ticks used chlorinated hydrocarbons and organophosphorus drugs (in the form Farrukh Dustov, emulsions, suspensions). Farm animals, which parasitic mites, treated with insecticides. Since each group of pincers has its biological features, dosage and the methods of application of acaricides for each group are different.
Cm. also Disinsection, Dezinficiruyusch funds.