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作者于1991年7～11月间,对丽蝇蛹集金小蜂进行了野外释放试验,选择以家蝇为主的孳生场所(酱糟),其中释放点、对照点各1个;将室内培养繁育的大量小蜂在释放点每周1次,共释放14次,累计释放小蜂数约为260654只,平均约18618只/周。结果显示,释放点家蝇密度下降59.9%,厩腐蝇下降32.2%,丽蝇科种类下降24.5%,麻蝇科种类下降14.5%,释放点该蜂在家蝇蛹的寄生率为41.6%,对照点为14.2%。作者认为,通过室内大批量繁育蝇蛹寄生蜂,在野外局部范围内定点、定时大量释放,可在一定程度上控制有害蝇类的种群密度。
From July to November 1991, the author carried out the field release test on the queen bee Aphelenchoides microphylla, and chose to breed the housefly as main breeding place (sauce bad), in which the release point and the control point were each one; A large number of breeding bees in the release point once a week, a total of 14 times release, the cumulative release of the number of small buzz about 260,654, an average of about 18618 / week. The results showed that the density of housefly in the release point decreased by 59.9%, the stable flies decreased by 32.2%, the species in the family Liriomyces decreased by 24.5%, the species in the family Muscidae decreased by 14.5%, and the parasitism rate in the housefly pupae was 41.6% 14.2%. The author believes that by large-scale indoor breeding fly pupae parasites, in the wild within the scope of the fixed-point, a large number of regular release, to a certain extent, control the population density of harmful flies.