Bt氟铃脲复配剂抑虫琳对甜菜夜蛾的LC50 为 2 73mg/kg ,与 5%抑太保的 2 4 1mg/kg相近 ,田间平均防效抑虫琳为 84 98% ,抑太保为 6 8 4 2 % ,差异不显著。对小菜蛾 ,抑虫琳的毒效明显较高 ,LC50 仅为 0 2 8mg/kg ,而抑太保达 5 6 8mg/kg ,田间平均防效抑虫琳为 76 73% ,而抑太保仅为 58 90 %。抑虫琳低毒安全 ,对大鼠经口LD50 >50 0 0mg/kg ,对蔬菜也不产生药害 ,是高效、低毒、安全性良好的无公害农药 Bt hexaflumuron The inhibitory insecticide against beet armyworm LC50 of 2 73mg / kg, and 5% of the epothilones 2,441 mg / kg similar to the average field effect of insecticide forest was 84 98%, Epothilone 6 8 4 2%, the difference is not significant. The toxicity to Plutella xylostella and Ribavirin was significantly higher with LC50 of only 0 28 mg / kg, while that of anti-TB was 56 68 mg / kg. The mean field-effect inhibition rate was 76 73% 58 90%. Worms Lin low toxicity, the rat oral LD50> 50 0mg / kg, does not produce phytotoxicity on vegetables, is efficient, low toxicity, good safety of pollution-free pesticides