摘要
东方实蝇蛹俑小蜂在山西可从4种蝇蛹内羽化出,每只蝇蛹羽化出一头蜂。成蜂6月出现,11月底消失,7～9月较多。主要活动于畜禽养殖场等堆粪场所。适宜宿主为家蝇、厩腐蝇与丝光绿蝇的1～2日龄蛹。该蜂以触角寻找宿主、辨别日龄。在20～25℃、RH80～90％、10小时光照条件下,完成一代需18～20天。雄蜂寿命4～15天;雌蜂10～20天。雌雄比为1.3～2:1。防治蝇蛹试验表阴:蜂蛹比例为1:5时,家蝇的死亡率为71％、厩腐蝇为94.4％、丝光绿蝇为99.9％、大头金蝇为53.3％。每头雌蜂可灭蝇蛹10～30头。
Spalangia endius, a pupal parasite of flies, emerged from the pupae of four field collected fly species: Musca domestica, Muscina stabulans, Lucilia sericata, and L. illustris in Shanxi Province. There was only one wasp emerging from each parasitized pupa. The adults appeared during June to November, mostly in poultry and livestock farms, and increased in numbers during July to September. S. endius chose mainly 1-2 day-old pupae of M. domestica, M. stabulans and L. sericata to oviposite. The life cycle of the parasite was 18-20 days under 20-25℃, 80-90% RH and 16 hr. photophase. When the parasite was introduced to its host at a rate of 1 para.: 5 host in the caged experiment, the parasitization of M. domestica, M. stabulans, L. sericata and Chrysomyia megacephaia was 71%, 94.4%, 99.9% and 53.3%, respectively. Each female parasite could kill 10-30 fly pupae.
关键词
实蝇蛹俑小蜂
蝇蛹
生物防治
Spalangia endius Musca domestica Muscina stabulans Lucilia sericata fly control
