黑青小蜂属于膜翅目,小蜂科,学名叫Dibrachys Cavus Walker。1955年于徐家棚棉场仓库中发现,当时察觉该蜂对越冬的红铃虫寄生率很高,1956年开始室内饲养,1957年初步在仓库里放播,寄生率高达99%以上。1958年在黄梅孔龙棉区农家仓库重点放播,效果也很好,根据黄梅测报站5、6月间检查红铃虫被寄生率从44—98％。7月中、下旬检查附近棉田红铃虫为害花朵的虫花率仅1.4％,而没有放蜂的仓库附近棉田花朵被害率13—23％,说明了黑青小蜂大大压缩了过冬红铃虫的基数,降低了花期的为害,对保伏桃是起到了一定 Black Green wasps belong to Hymenoptera, the small bee family, scientific name is Dibrachys Cavus Walker. In 1955, it was found in the warehouse of Xujiaotou cotton field that it was aware of the high parasitic rate of the red beetle overwintering. It was reared indoors in 1956 and was initially broadcast in the warehouse in 1957 with a parasitic rate of over 99%. In 1958 in Huangmei Konglongmian farmer warehouse focus on broadcasting, the effect is also very good, according to Huangmei newspaper station in May and June to check the pink bollworm parasitic rate was 44-98%. In mid-and late July, the rate of pest blight on pink bollworm near the cotton fields was only 1.4%, while that of cotton fields near the warehouses without amphibians was 13-23%. This shows that the black-bellied bee greatly compressed the winter red bollworm The base, reducing the flowering of the damage, the Paul has played a certain peach