The safety of seed coating agents,including spinetoram,Bt,acetamiprid,tolfenpyrad,chlorfenapyr,lambda-cyhalothrin+chlorfenapyr and lambda-cyhalothrin+acetamiprid,on the emergence,plant height and fresh weight of Chinese flowering cabbage was evaluated and their control effects on Phyllotreta striolata(Fabricius)were also investigated by field experiment.The results showed the seven pesticides were safe to Chinese flowering cabbage by seed coating.Except the lambda-cyhalothrin+chlorfenapyr and lambda-cyhalot...