2种方法防治金龟子的药效研究

目的]探究化学和生物杀虫剂对青海省金龟子的防治效果。方法]研究了生物杀虫剂绿僵菌(粉剂和水剂)以及化学杀虫剂50%辛硫磷对青海省金龟子的防治效果。结果]绿僵菌粉剂防治效果达到80%以上,且对牧草和益虫安全;而50%辛硫磷的防治效果很差。结论]生物杀虫剂将适宜在青海省大面积防治金龟子中推广应用。

Study on Efficacy of Two Methods to Control Scarab

Objective ] The aim was to study the control effects of chemical and biological insecticide against scarab in Qinghai Province. Method] The control effects of biological insecticide Metarhizium anisopliae （dust and agent） and chemical insecticide 50% octane sulfate phos- phate on scarab in Qinghai Province were studied. Result] The control effects of Metarhizium anisoplicue dust reached more than 70%. Metarhiz- ium anisopliae dust and agent were safe to forage and beneficial insects. But the control effect of octane sulfate phosphate was poor. Conclusion] The biological insecticide should be used to control scarab in Qinghai Province widely.