What are pesticides
Pesticides referred to funds that are used to kill pests, weeds, some types of fungus, etc. Most often they are used in agriculture. Agricultural pesticides are also called pesticides.
In a broad sense, pesticides called means for the destruction of potential pests that pose a threat to humans or property. Depending on whether one directed against pesticides, they are divided into several groups. For example, insecticides are used to control insect pests, acaricide - mites, rodontitsidy - rodents, Herbicides - weeds, fungicides - fungi, bactericides - bacteria, rodenticide - with potentially harmful warm-blooded animals, nematicides - with roundworms and etc. In addition, all pesticides are divided into systemic and contact. Funds belonging to the first group, enter the plant and kill the pest, devouring them. Pesticides destroy second group of animals or plants by direct contact. Finally, there are three groups of pesticides danger to humans and several kinds thereof depending on exactly what chemicals were used in the manufacture. In particular, pesticides are organochlorine, organophosphate, organomercury, arsenic and so on. Despite the fact that pesticides are designed to protect people and animals from the insect vectors of infection, and plants, timber, food supplies, etc. - Pests from the potential, they themselves can be quite dangerous. Gradually accumulated in plants, soil, water, etc., They begin to poison even those people or animals that are not directly in contact with them. The use of some pesticides also leads to deterioration of the environment and the quality of food, disruption of some of the natural processes and so forth. The situation is complicated by the fact that some pests are immune to such funds. It is for these reasons, it is strictly forbidden to use some of the strongest pesticides, especially DDT.