How do you classify chemical pesticides? The main ingredient of pesticides

How are pesticides classified by chemical structure?

The main ingredient in <> insecticide is methrin.

These ingredients are less toxic to humans and animals, and have a good poisoning and fumigation effect on mosquitoes, flies, cockroaches and other pests. Basically, the current household insecticides are pyrethroids, which use pyrethrin with killing effect and permethrin with lethal effect.

Insecticides, etc. Most aerosol insecticides on the market are high-efficiency and low-toxicity products, and the pyrethroid compounds in them account for only a few tenths of a percent, which will not cause harm to the human body.

First, the main components of pesticides

1. The main ingredient of insecticides is pyrethroid raw materials such as pyrethrin, which are very toxic to humans and animals, but have very good poisoning and fumigation effects on mosquitoes, flies, cockroaches and other pests.

2. At present, the household insecticides are mainly pyrethroid aerosol insecticides, which are generally compounded with pyrethrin and permethrin and insecticides with lethal effects.

It not only has a fast killing effect, but also has a strong killing effect, which greatly improves the insecticidal effect.

3. The aerosol insecticides widely used on the market are basically high-efficiency and low-toxicity products, and the main insecticidal components of pyrethroid compounds account for only a few tenths of a percent, and will not cause any harm to the human body. Some aerosol insecticides have a bad smell, mainly because of the butane in aerosol insecticides.

Kerosene and permethrin have a large odor.

Second, the use of pesticides should be paid attention to

1. Try to use insecticides sparingly, try not to use them when you don't use them, and be sure to wear a mask when using spray insecticides. Minimize contact with pesticides, such as not staying in the house where the pesticide is applied, leaving immediately after application, and opening doors and windows to fully ventilate and exhaust before entering.

2. Do not spray insecticides directly to people and pets, and at the same time, avoid infants, children, pregnant women and people with specific allergies from contact with pesticides to avoid adverse effects. Be careful not to spray pesticides on food, utensils, furniture and bedding when using them, and keep them safe.

Insecticides are mainly used to control pests in agriculture and forestry, sanitation, grain storage and animal husbandry, and are a class of pesticides with the fastest development, the largest dosage and the most varieties.

1. According to the chemical composition and development process, pesticides can be divided into two categories: inorganic insecticides and organic insecticides. Organic pesticides usually include natural organic pesticides, synthetic pesticides, and microbial pesticides.

2. According to the mode of action of insecticides, they can be divided into gastric poisoners, contact killers, systemic agents, fumigants, food repellents, sexual attractants, repellents, sterile agents, insect growth regulators, and synergists.

3. Insecticides are different according to the toxicological mode of action, including physical agents, protoplasmic agents, respiratory agents, and nerve agents.