Laphygma exigua Hubner is a kind of bursting polyphagia pests. It possesses a good drug-resistance character and is more difficult to control. Indoor and field experiment indicates that effect of 15% Anda on controlling Laphygma exigua Hubner less than four-instar stages can reach more than 90%. This drug is Not only efficient, low poison and little remain, but also elaborate action as soon as possible.