本文报导浙江省余姚农药厂最近试制成功的沙蚕毒素系列农药之一,50%虫杀手粉剂和20%水剂防治稻纵卷叶虫的效果。试验结果表明:虫杀手粉剂和水剂仍保持沙蚕毒素的高效、低毒特性。残效期20天左右,是取代对杀虫双、杀虫单产生抗性地区水稻害虫的理想药剂。 This article reports the effect of one of series of nereistoxin pesticides, 50% of worm killer powder and 20% of liquid agent on the control of rice leafroller recently developed by Yuyao Pesticide Factory in Zhejiang Province. The test results show that the worm killer powder and water still retain nereis toxin high efficiency, low toxicity. Residue of 20 days or so, is to replace the insecticidal double, insecticide single resistance to produce rice pests in the ideal agent.