Pyrethrin is a broad-spectrum insecticide that can control a variety of pests, and its insecticidal virulence ...    More ...

Pyrethrin is a broad-spectrum insecticide that can control a variety of pests, and its insecticidal virulence is 10~100 times higher than that of the old generation of pesticides such as organochlorine, organophosphorus and carbamate. Natural pyrethroid is an ancient plant insecticide, an active ingredient of pyrethrum flowers, and its chemical structure was only determined by research in the 40s of the 20th century, after which the synthesis of similar substances began to be studied. The main source of pyrethroid is the flowers of the pyrethroid plant, which also contains pyrethroid in the roots and stems. +8615275620926,  www.chemsunco.com
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