湖北省国营西大垸农场植保站在1977年害虫天敌资源调查中,发现了棉花红铃虫幼虫期的体外寄生蜂——黑胸茧蜂,其自然寄生率较高。几年来进行大面积试验研究的结果,该蜂种对第一代红铃虫的防治效果达77—91%,对第二代、第三代红铃虫也有一定的防治作用。在对该蜂种的饲养、放蜂技术上,他们研制出一种羽化箱。这种羽化箱可以自 In the investigation of pest natural enemies in 1977, the state-owned western embankment farm plant protection station in Hubei Province found that the parasitic wasp-black-thorn bee-pollinate parasitoid was the natural parasitism rate of cotton bollworm larvae. Over the past few years to conduct a large area test results, the bee on the first generation of pink bollworm prevention and control of 77-91%, on the second and third generations of red bollworm has some control. In the breeding of the bee species, put the bees technology, they developed a feather box. This featherbox can be self-contained