Repellents are means against insects and mites. Repellents are used in cases where it is impossible for some reason to destroy insects, especially in the open nature (forest, field, and so on). On the mechanism actions are three groups of P.: 1) prevent the insect to choose the object of attack, changing the natural smell of leather; 2) preventing planting insect on the skin and puncture it (the deterring effect), acting on the olfactory organs of insects) providing mechanical protection of the skin (vaseline and others). Repellents belonging to the second group of compounds that are widely applied in practice. These include: Bensimon (gesamed) - benzoylmethylene (colourless or slightly yellowish liquid), dibutyl - dietilovyi ester phthalic acid (transparent colorless oily liquid), dietilftalat - dimethyl ester phthalic acid (transparent colorless liquid), diethyltoluamide, a synonym for "DEATH metal" (light yellow oily liquid), carboxyl - digikameran-carbamide (pure transparent or slightly yellowish liquid), kusol-acetyl-1,2,3,4-tetrahydroquinoline (siropoobraznaya liquid of yellow colour), repellin alpha blend repellents: 48% of dietilftalat, 50% benzylpiperidine and 2% ethyl cellulose (oily siropoobraznaya liquid of yellow colour).
Repellents applied in its pure form, solutions, ointments, creams, lotions, toothpaste. For preparation of solutions use alcohol, acetone, freon. In the manufacture of emulsion is used glycerin, vaseline and other
When using repellents consumption of pure drug is calculated at an average rate of 40 ml per 1 m2 of the service or 32 mg per 100 g tissue. Outer clothing (shirts, pants, sweaters, skirts) should be treated by rubbing drug hands. On the men's suit is applied 300-400 ml; processing headdress spend 50 ml Clothes can be processed by atomization (spray) in pure or diluted in 2-4 times of the drug. Some repellents dissolve plastic (buttons and other).
Repellents are used for protection of the individual and collectives (loggers, construction workers, military units in camps and other) in areas teeming with insects (mosquitoes, gnats, flies and mosquitoes or ticks. When collective protection process tents (NCDs, entrance and others), vegetation (shrub) around the camp. Repellents with ultrafine cellulose acetate jelly used for impregnation of protective grids. Find application grid Pavlovsk (from fishing nets) size of 50 X 70 cm, which cover the head. In order to consolidate repellent on the grid using ultrafine cellulose acetate jelly.
For protection of the person can be also used special clothes that mosquitoes and other insects cannot pierce. Designed clothes (grid, wearing under the jacket) from yarns, whose thickness is greater than the length of the proboscis of a mosquito.
On exposed parts of the body repellents put off in places, full of mosquitoes and ticks. For lubrication of face, body, hands (and arms) require 1.5-2 g (15-20 drops) drug; his take on the palm, then smear on the skin. When crushed in the face protect the eye from contact with the drug. Repellents cause a burning sensation freshly shaved skin.
Under irrigation skin and clothing are aerosol cylinders containing repellents. Repellents are not implemented against fleas, cockroaches, flies, bugs, ants and moths.