【摘要】 以江苏省苏州市浒关和横泾等地的桑螟为研究对象 ,系统调查了桑螟全年 5个世代各龄幼虫寄生性天敌昆虫的发生情况。 3年共收集到桑螟幼虫的寄生性天敌昆虫 14种 ,其中姬蜂 7种、茧蜂 3种、小蜂 3种、寄蝇 1种。在天敌寄生蜂中 ,桑螟绒茧蜂为当地的优势天敌种群 ,对桑螟的发生与为害具有明显的控制作用 ,应加以保护和利用。更多还原

【Abstract】 In the past three years,we have investigated the parasitism condition of the natural enemy insects parasitized in Diaphania pyloalis (which are caught from Xuguan and Hengjing of Suzhou),and collected fourteen kinds of them (seven kinds of Ichneumonidae,three kinds of Braconidae,three kinds of Chalcididae and one kind of Tachinidae).Apanteles heterusiae Wilkinson is the dominant species of Diaphania pyloalis natural enemy insects,they have obvious effect on prohibitting Diaphania pyloalis from occuring and harming.So we should protect and utilize them.更多还原