PYRETHROID COMPOUNDS AND USE THEREOF

Disclosed are pyrethroid compounds represented by formula (A), or their stereo chemical isomers, or the mixture of such isomers, and the preparation process thereof and the use thereof for killing pests. In the formula (A), R₁ is methoxymethyl (-CH₂OCH₃) or H; and R₂ is –CF₃ or –COOCH(CF₃)₂. The test proves that the present compounds show better effect for repelling and controlling pests such as mosquito, musca and German cockroach.