Knowledge points of mixed insecticides

The mixed use of organophosphorus and organophosphorus, such as methyl parathion or ethyl parathion mixed with trichlorfon, dipterex mixed with malathion, and organophosphorus mixed with pyrethroid, such as omethoate mixed with fenvalerate, pyrethroid mixed with dimethoate and so on. The mixture of carbamate and organophosphorus, such as leaf horse EC mixed with cicada powder and marathon, carbofuran and monocrotophos granules, and organic nitrogen and carbamate, such as two-speed wettable powder mixed with aldicarb and aldicarb, etc. Insecticides and synergists are mixed: at present, the commonly used synergistic ethers, synergistic esters, synergistic agents, synergistic phosphorus and so on. These synergists themselves have no direct toxic effect on pests, but when added to insecticides, they can resist the effect of oxidase, prevent insecticide from being decomposed and improve the effect of insecticides. However, synergists can not increase the efficiency of all pesticides, and the range of synergism for different pesticides is not the same. Mixture of fungicides and pesticides: the main purpose of the mixture of fungicides and pesticides is to play the role of "simultaneous treatment of insect diseases" and "multiple effects with one spray". Such as the mixture of Daofeng San, carbaryl and Chunleimycin, it can also control Chilo suppressalis, rice blast, planthopper and leafhopper while sterilizing.