Pirimiphos-methyl: Mechanism of Action and Synthesis Process

Methylpyrimethiphos is a cholinesterase inhibitor with touch and fumigation effects. It penetrates into foliar tissues, has foliar conductivity and is widely used to control pests and mites in warehouses, granaries, livestock barn, yard and industrial plant pests and mites. It is especially useful for controlling white flies, thrips, mealybugs, aphids and mites in tomatoes, cucumbers, peppers, eggplants and other vegetables. It has a good effect on tomatoes, cucumbers, peppers, eggplants and other vegetables, thrips, mealybugs, aphids and mites with long-lasting effect. At present, the most important role of methamidophos is the control of storage pests.

Mechanism of action

Methamidophos, like other organophosphates, is an acetylcholinesterase inhibitor. It has the effects of touch, stomach poisoning, fumigation and some endosmosis. The principle of its insecticidal action is to cause the accumulation of acetylcholine in the body of grain storage pests, so that the cholinergic nerve impulses continue to die, and at the same time, because it has a long residual effect period, so it also has the effect of continuous protection. It also has a long residual effect, so it has the effect of continuous protection.

Methamidophos is mainly used in two ways

1. General spraying

Methyl pyrimethoprim emulsifiable oil is diluted proportionally and applied by step-by-step spraying in the space of grain storage bins and the surface layer of grain piles, which can cover different growth and development stages of It can cover different growth and development stages of grain storage pests, improve the efficiency of pest control and have the role of continuous protection.

2. Fogging application

Methyl-pyrimidinophos emulsifiable oil is diluted in proportion with a fogging machine and then fumigated with or without a circular flow. In addition, the health aspect is also the direction of the registration of mepiquat, there are 12 mepiquat registered in the country for health use, mainly to control indoor mosquitoes and flies. Compounding The preparation is compounded with high efficiency cypermethrin.

Targeted pests

Methamidophos has stomach poisoning and fumigation effects. It has good efficacy against grain storage beetles, weevils, rice weevils, saw-worm, saw-worm, grain borer, pink spotted borer, moths and mites. It has good efficacy. It can also control warehouse pests, household and public health pests (mosquitoes and flies).

Metribuzinphos is one of the most efficient and economical storage insecticides available. With the decline in the use of fumigant phosphine type insecticides, methamidophos is one of the few storage insecticides that is still It is one of the few storage insecticides that can still be used with good insecticide efficacy and low residue. As the use of chemical pesticides for storage pest control decreases and pest resistance increases, its The combination with deltamethrin and even with polymyxin may become the mainstream of the future market. Welcome to click to learn more.

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