为解决落叶松种子严重短缺的问题，利用５％杀铃脲乳油、２５％灭幼脲Ⅲ号悬浮剂、２０％杀铃脲悬浮剂、５％伏虫灵乳油和３０％辛脲乳油等昆虫生长调节剂，在大兴安岭进行了落叶松球果花蝇（Ｓｔｒｏｂｉｌｏｍｙｉａｓｐｐ．）防治试验。试验结果表明，球果被害率可减少２０％～８０％，种子被害率减少３５％～４０％。由球果和种子被害率分析可见，二次施药的防治效果明显好于一次施药的防治效果。 In order to solve the problem of the serious shortage of larch seeds, the insecticides were treated with insecticides such as 5% chlorpyrifos, 25% diflubenzuron, 20% tebufenozide, 5% fumagillin and 30% Growth regulator, conducted in Daxinganling Larch (Drosophila melanogaster fly (Strobilomyiaspp.) Prevention and Control. The results showed that the damage rate of cones can be reduced by 20% ~ 80% and the damage rate of seeds reduced by 35% ~ 40%. According to the analysis of the damage rate of cones and seeds, the control effect of secondary application is obviously better than that of one application.