Bamboo vinegar, potash soap and suspending agent of sulfur could increase the effect of Natural Pyrethrum, Baicao I and Kingbo for L. clerkella.

• 竹醋液、软钾皂和硫悬浮剂作为辅助药剂一定程度上能够增强除虫菊、清源保和百草一号的药效。