摘要
1992年在辽宁省鞍山、海城和岫岩县,共收集到舞毒蛾天敌36种,其中寄生性昆虫19种,捕食性昆虫15种,病毒和白僵菌各1种。在幼虫期,优势种是病毒、窄腹凹眼姬蜂和绒茧蜂,可杀死56.09±20.75％的幼虫。蛹期主要是寄蝇和麻蝇,追寄蝇数量占75％以上,总寄生率为31.21±20.87％。研究表明,天敌对控制舞毒蛾种群数量有重要作用。
In the field Studies conducted in Anshan City, Haicheng City and Xiuyan County of Liaoning Province, China in 1992, 36 species of natural enemies were identified from Gypsy moth, Lymantria dispar, including 19 parasitoids, 15 predators, one NPV and one fungus, Beauveria bassiana. It was found that the NPV, an ichneumonid wasp, Casinaria tenuiventris and the broconids, Apanteles spp. were the dominant natural enemies of the larval stage, giving a total of 56.09±20.75% parasitization of the larvae. The major parasitoids of the pupal stage were tachinid and sarcophagid flies which made a total parasitization of 31.2±20.87%. Of the flics, over 75% was found to be Exorista. These data showed that natural enemies played an important role in controlling the Gypsy moth populations.
基金
中美合作生物防治实验室1992年合作项目
关键词
舞毒蛾
天敌
自然控制
森林害虫
Lymantria dispar parasitoid predator NPV Beauveria bassiana natural control
