In the prevention and control of agricultural pests and the defense of urban sanitary pests, pesticide products are indispensable pesticide products ; pesticides can be divided into two categories: biological source insecticides and chemical synthetic pesticides according to different sources. In the course of use, insecticides are a type of preparation for controlling pests according to different methods. Insecticides can be divided into four categories according to their mode of action. The pesticide network Xiaobian first listed these four classifications and common pesticide product representatives as follows for your reference.
According to the mode of insecticidal action 4 categories <br> First, the contact insecticide in contact with the epidermis or appendage, infiltrated into the body, or corroded the wax layer of the insect body, or block the valve to kill pests, such as pyrethroids Lacy-cyhalothrin, mineral oil emulsion, etc.
Second, the stomach poisonous insecticide through the insect mouth into its digestive system to play a poisonous killing effect, such as pyrethroids, plastic baits, killing rubber bait, trichlorfon and so on.
3. The systemic insecticide is absorbed and transported to the whole plant by the seeds, roots, stems and leaves of the plant. Within a certain period of time, the original or its activated metabolites feed on the plant tissue or suck the plant juice and enter the insect. Body, play poisonous killing, such as dimethoate.
Fourth, fumigation-type insecticide Odor can also kill insects (organic phosphorus, such as: dichlorvos, security, fumigant is characterized by higher temperature, the stronger the effect, it is not difficult to understand, high temperature is conducive to gas diffusion)
3 major mechanisms of pesticides
First, the decomposition of the body protein, directly destroying the insect body.
Second, rapid dehydration to death.
Third, block the metabolic pores, causing suffocation.
In the future, the pesticide market will be an efficient, low-toxic, environmentally friendly and less resistant insecticide that will become more and more widely used.
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