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灭幼脲是一类昆虫生长调节剂,对幼虫具有致迟效应,对卵具有杀伤作用.本文研究了它对松毛虫的生长和发育的抑制效应和对松毛虫卵的毒效作用,并进行了大面积防治试验.结果证明,灭幼脲对松毛虫毒性高、用量小、成本低、效果好,是一种理想的杀虫剂.
Chlorbenzuron is a kind of insect growth regulator, which has delayed effect on larvae and has killing effect on eggs.In this paper, the inhibitory effect on the growth and development of Dendrolimus punctatus and its toxic effect on eggs of pine caterpillars were studied. A large area of prevention and control tests were carried out.The results showed that the mephituron is a kind of ideal insecticide with high toxicity, small dosage, low cost and good effect.