Pesticides are substances that destroy pests

Pesticides are substances used forfight against unwanted microorganisms, fungus, insects, etc. To the harmful are living beings, plants or other organisms that damage the health or economy.

To date, the ratio of pesticides tosociety is very ambiguous. They are certainly useful, especially in terms of conservation of crops. However, at the same time, they pollute the soil and even groundwater, can become a threat to the health of humans and animals.

Therefore, to date, the use of substances such as pesticides and agrochemicals is regulated by the legislation of all developed countries.

For today in shops it is possible to meeta huge number of drugs that relate specifically to the two above categories. Sale and purchase of them are not prohibited. However, only the species entered in the State Catalog. If you need to find out which preparations belong to this category, you can see a special reference book of pesticides.

Such means can be used not only inagriculture, but also, for example, in everyday life. After all, different kinds of insects are often undesirable in certain places. Pleasant pastime in nature can prevent, say, mosquitoes.

And about such unpleasant "neighbors" as bugs andcockroaches, and can not speak. Special means are also used against such insects. In this case, pesticides - insecticides is one of their species. Often this category includes repellents.

Depending on the application, pesticides are dividedalso on herbicides, fungicides, bactericides, etc. In agriculture, the first two drugs are used. Pesticides are substances that can have both organic and inorganic origin. Herbicides are no exception. This is the name of the means designed to control weeds. They can have both a directed action based on specific features, and completely destroy plants.

Fungicides are pesticides used forelimination and prevention of diseases. For example, preparations containing copper are used to control the solanaceous blight. Fungicides containing sulfur or mercury are also produced. Sulfur is used to combat such an infection, as, say, powdery mildew.

Synthetic fungicides of organic origin include dithiocarbamates. To prevent mold from appearing in the bread, sodium propionate (a pesticide of this class) is used.

Pesticides are, as already mentioned, ororganic, or inorganic substances. Inorganic types are not very effective, they can accumulate in the soil. Organic drugs are divided into natural and synthetic. The first type is represented, for example, by a substance such as the alkaloid nicotine. Pesticides of this type are not currently used or used rarely. More often apply synthetic organic pesticides. Such, for example, carbamates, organophosphates, organosulfur compounds and pyrethroids. Banned are organochlorine pesticides, including DDT, because they poison the environment.

So, pesticides are both useful and harmful substances. Of course, they can and should be used. However, within reasonable limits and only allowed.

</ p>