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抑食肼对棉铃虫１、２龄幼虫拒食生物活性很强，平均拒食率为８８％和８３％，对５龄幼虫基本无拒食作用。抑食肼与灭幼脲对菜青虫４龄幼虫有较好的触杀作用。还研究了棉铃虫幼虫取食抑食肼后中肠的组织学病变。
Antifeedant hydrazine had strong antifeeding activity on the 1st and 2nd instar larvae of H. armigera, and the average antifeedant rates were 88% and 83%, respectively. Inhibition of hydrazine and chlorbenzuron on the 4th instar larvae of Pieris rapae has a good contact action. Histological changes of midgut after bollworm larvae were also studied.