What Is a Pyrethroid?

Pyrethroids are a class of important synthetic pesticides with high efficiency, broad spectrum, low toxicity, and biodegradability. In the late 1960s, and especially in the 1970s, pyrethroid insecticides were vigorously developed. Especially in 1973, the first daylight-stable pyrethroid pyrethrin was successfully developed, which overcomes its instability to light and air. ^[1]

Pyrethroid

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Pyrethroids are a class of important synthetic pesticides with high efficiency, broad spectrum, low toxicity, and biodegradability. In the late 1960s, and especially in the 1970s, pyrethroid insecticides were vigorously developed. Especially in 1973, the first daylight-stable pyrethroid pyrethrin was successfully developed, which overcomes its instability to light and air. ^[1]

synthetic pyrethroids

In 1949, MS Shecht and others in the United States synthesized the first commercial analogue, permethrin. In the 1950s and 1960s, a number of similar compounds have been successfully developed, commonly known as synthetic pyrethroids. These early varieties are related to natural

Pyrethroids are a broad-spectrum insecticide capable of controlling a variety of pests. Their insecticidal virulence is higher than that of older generation insecticides such as organochlorine,

Pyrethroids are divided into two categories, natural and synthetic. The synthetic ones are light unstable and light stable (see table). Their chemical structure is more complicated,

FAO / WHO recommends deltamethrin's ADI value of 0.01mg per kilogram of body weight, fenvalerate's ADI value of 0.02mg per kilogram of body weight, and dichlorophenothrin ADI of 0.05mg per kilogram of body weight.