stomach poison pesticides: pests eat poisoned.

Stomach toxic pesticides play an important role by acting directly on the pest's digestive information system and other parts of the body. Pests can only be killed if we eat this "poison". For example, organophosphorus pesticides such as chlorpyrifos and trichlorfon belong to the stomach poison type of pesticides. This use of pesticides is not only highly toxic to pests, but also to humans and some other mammals. However, not all stomach toxic pesticides need to be highly toxic.

Currently, the most widely used insecticide against lepidopteran pests, benzamide, also acts primarily as a gastrotoxin. When a pest eats a crop sprayed with benzamide, nicotinic receptors in the fish are activated, causing the release of calcium ions from the insect's cells, which ultimately paralyzes the pest and kills it. The toxicity of benzamide is at a low toxicity level and is very safe for humans and mammals. Therefore, it is not scary even if it is a stomach-type pesticide.

contact with pesticides:Poisoning is immediate upon contact.

Contact pesticides act by entering the body wall of the pest. The most typical are pyrethroid pesticides such as Deltamethrin,VITFE insect killer manufacturer cypermethrin and β-cypermethrin. Unlike gastric insecticides, contact insecticides are toxic whenever they come into contact with pests. For example, organophosphorus chemical pesticides such as chlorpyrifos are both contact and stomach toxic.

Systemic pesticides:After being absorbed by the plant, the pest dies after eating the plant.

After the application of pesticide endosorption type, the general enterprise will be affected by the plant can quickly develop absorption. Absorbed active main ingredient analysis with the Chinese plant life education activities to conduct to the roots, stems and leaves and other parts of the plant. The active ingredient does not go through a series of metabolically important actions in the plant that may lead to the formation of more powerful metabolized substances. Once the pest feeds on this poisonous plant, it dies immediately. Nicotinic insecticides are one of the most typical problems with systemic pesticides.

Nicotine insecticides include imidacloprid and thiamethoxam. These pesticides have strong internal uptake and even the root system absorbs them well. For this reason, we often see this type of insecticide in the form of granular sprays. Thiamethoxam is effective against biting and sucking pests such as thrips, aphids and woodlice, clogging the mouthparts and causing them to starve to death. In addition, this insecticide has some effect on seedling growth, which may be related to its adsorption activity.

Fumigant insecticides:Kill pests by attacking their respiratory system.

Fumigants can be converted into toxic gases when applied. These toxic gases enter the pest through its respiratory system and can kill it even if it does not eat or touch it.

A typical example of a fumigant pesticide is aluminum phosphide, a grain bin pesticide. In addition to aluminum phosphide,Chinese SLEEP COOL Insecticide spray there are other pesticides with fumigating effects, such as dichlorvos and chlorpyrifos. Some farmers choose to spray dichlorvos in the middle of the day to control the outbreak of rice fly, hoping to maximize the fumigant effect of dichlorvos.

Specific cellular function research insect regulators: eliminating pests through the use of hormones, etc.

Specific insect regulators kill pests by regulating their growth and development. The first is insecticides that regulate insect growth. Many insects need to molt during growth and development. The second are attractants, etc., the most typical example being sex attractants, these insecticides direct pests to congregate by means of specific hormones, thus disrupting or destroying mating or egg laying by the insects. The third is repellents, which are special substances that repel pests.

Whether it is a "sex lure" that cannot be stopped by impulsive temptation or a regulator that prevents the healthy growth of pests, its toxicity is usually low and it is mainly used for green control.

In agricultural production, various pesticides do not have a single role to play. For example, organophosphorus chemical pesticides such as chlorpyrifos not only poison the stomach, but also can be touched; imidacloprid not only has a poisoning effect, but also has a strong systemic effect; some pesticides even have an asphyxiating effect, for example, mineral oil and Mancozeb Mancozeb Mancozeb