Pyrethrins and Pyrethroids

Pyrethrins and pyrethroids Recently, pyrethroids have become increasingly popular in the production of pesticides. Currently it is used for many products all over the world. Many of these products are sprays, solutions, pet shampoos, insecticides that are used in many families. The use of pyrethroid became more common as it replaced the use of organophosphate, which has been shown to be more toxic to birds and mammals than pyrethroids and pyrethroids.

Do not mix pyrethroid, pyrethrum extract (chrysanthemum and C. cinella efolium) and "pyrethroid" substance produced by chemical synthesis on pyrethroid model. If several pyrethroids have properties similar to pyrethrins, they are toxic to the environment and to humans. Mechanical processes usually control the occurrence of diseases and parasites. Even if you fall to the ground, you must destroy the stem and the leaves. Some parasites spend a bad season there and can become a new breeding ground in the spring of the following year. If you quickly delete the lesion and destroy it, it may lead to developmental parasitosis. Even manually removing insects or adapting and capturing traps to different species can effectively resist undesirable invasion.

Synthetic pyrethroid pesticides are pesticides synthesized by simulating the structure of pyrethrum oleoresin extract and natural pyrethrin derived from dry chrysanthemum. Insecticidal properties of pyrethrin are derived from ketol esters of chrysanthemic acid and pyrethroids. They are axon poisons that cause organism paralysis by leaving the sodium channel open in the neuronal cell membrane. The sodium channel is a membrane protein with a hydrophilic interior. The interior is a small hole whose shape precisely removes a part of the charged water molecules from the sodium ions, the sodium ion passes through the membrane, reaches the axon, and is advantageous for propagating the action potential Create a method. If the toxin leaves the channel open, the nerve can not be excited, so the organism will paralyze. They are relatively more stable than native pyrethrins and have a longer residual effect.