论文部分内容阅读
笔者于 1 999- 2 0 0 0年在城口银杏大蚕蛾发生区释放用其卵繁育的平腹小蜂防治银杏大蚕蛾 ,结果表明 :放蜂区虫卵寄生率明显提高 ,其校正寄生率为 69.30 % ,是一种可利用的天敌昆虫。可在银杏大蚕蛾发生区内推广应用。
The author from 1999 to 2000 in the mouth of the city of Ginkgo biloba moth occurrence area release their eggs breeding Baphicola giganticola large control moth, the results show that: parasitoids in the bee area significantly increased the parasitic rate 69.30%, is an available natural enemy insect. In the ginkgo occurred in the area of silkworm moth promotion and application.