【关键词】 棉大卷叶螟; 卷叶螟绒茧蜂; 生物学习性; 寄生行为; 趋性反应;

【英文关键词】 Sylepta derogata Fabricius; Apanteles derogatae Watanabe; Biology; Parasitic behavior; Tropism reaction;

【中文摘要】 本文主要调查了江淮棉区棉大卷叶螟的寄生性天敌种类,并研究了其优势天敌-卷叶螟绒茧蜂的生物学习性和寄生行为,同时对不同品种棉田棉大卷叶螟与天敌发生动态及其优势天敌-卷叶螟绒茧蜂对不同棉花品种的趋性反应做了初步探讨。结果如下: 通过大田调查与室内饲养观察,发现江淮棉区棉大卷叶螟的主要寄生蜂(蝇)有7种:卷叶螟绒茧蜂Apanteles derogatae (Watanabe);叶卷蚁形蜂Goniozus japonicus(Ashmead);卷叶螟姬小蜂Sympiesis sp.;菲岛扁股小蜂Elasmus philippinensis(Ashmead);广黑点瘤姬蜂Xanthopimpla punctata (Fabricius);广大腿小蜂Brachymeria lasus(Walker)和玉米螟厉寄蝇Lydella grisescens (Robineau-Desvoidy)。其中,卷叶螟绒茧蜂和卷叶螟姬小蜂为幼虫期优势寄生蜂种,广大腿小蜂为幼虫-蛹跨期优势寄生性天敌。自然情况下,棉大卷叶螟的被寄生率高达25.7%,寄生性天敌对棉大卷叶螟种群起着重要的控制作用。 卷叶螟绒茧蜂Apan...

【英文摘要】 We investigated the primary parasitoids of the cotton leaf-roller, Sylepta derogata Fabricius, in the Yangtze River and Huihe Valley, and did some research on the biology and parasitic behavior of Apanteles derogatae in thia paper. Besides, we surveyed the population dynamics of Sylepta derogata Fabricius and its primary parasitoids in different cotton fields. At the same time, we did the pilot study of tropism reaction of Apanteles derogatae to different cotton variety. The results were as following: ...