1.Basic Information

·Chemical Name: α - Cyano - 3 - phenoxybenzyl -(1R,3R)-3-(2,2 - dichlorovinyl)-2,2 - dimethylcyclopropanecarboxylate (trans isomer).

·Molecular Formula: C₂₂H₁₉Cl₂NO₃

·Molecular Weight: 416.3 g/mol

·CAS Number：71697-59-1

2.Mechanism of Action and Characteristics

·Mechanism of Action: By inhibiting the sodium ion channels in the nervous system of insects, it leads to disordered nerve signal transmission, causing pests to become over - excited, go into spasms and eventually die.

·Action characteristics: 

·Contact action + Stomach poison: No systemic activity. It needs to directly contact or be ingested by the pest's body surface / digestive tract to take effect.

·Highly effective and broad - spectrum: Effective against various pests such as Lepidoptera, Coleoptera, Diptera (e.g., cotton bollworm, aphid, fly, mosquito), especially significantly effective against pests resistant to       organophosphorus insecticides.

·Fast knockdown speed: Takes effect within minutes to hours after application, with a residual effect period of up to 2 - 4 weeks.

·Kills both eggs and pests: Has a killing effect on the eggs of some pests, which can reduce the population base of the next generation of pests.

3.Summary

·With its characteristics of high efficiency, low toxicity (to mammals), and broad spectrum, beta - cypermethrin has become an important insecticidal tool in the fields of agriculture and public health. However, attention should   be paid to its potential risks to the ecological environment. By means of scientific application of pesticides and resistance management, a balance between pest control and sustainable development can be achieved.