蛴螬是花生的主要害虫。一般可造成减产10—20%,重则达40%以上,甚至绝产。赣榆县有蛴螬24种,但在花生田内以暗黑鳃金龟为主。在开展生物防治研究过程中,发现了对暗黑蛴螬寄生专化性强,感病率高的布氏白僵菌。继而进行了室内毒力测定,田间小区试验及大田防治示范,均取得了较好的效果。室内三龄蛴螬感病率最低为56.52%,最高达94.88%。室外小池试验虫口减退率最低为60.0%,最高达86.67%,大田生长期防治虫口减退率达85.19%。 Scape is the main pest of peanuts. Can generally result in 10-20% cut, while up to 40% or more, or even abortion. There are 24 species of Gall in Ganyu County, but mainly in the field of peanut fields. In the course of carrying out biological control research, Beauveria bassiana has been found to be parasitized and susceptible to Diablo. Followed by indoor toxicity determination, field plot test and field prevention and treatment demonstration, have achieved good results. The lowest incidence of indoor third instar larva was 56.52%, up to 94.88%. The lowest rate of pest mouth drop was 60.0% and the highest was 86.67% in outdoor cucumber test, and the reduction rate was 85.19%.