摘要
通过采集舞毒蛾卵块、幼虫、蛹在实验室内培育,共发现舞毒蛾寄生性蝇类6种、寄生蜂类4科8种。其中,幼虫期寄生天敌有金小蜂科1种,即黑青小蜂Dibrachys cavus;广肩小蜂科2种,即粘虫广肩小蜂Eurytomaverticillata和Eurytoma sp.;以及茧蜂科3种,姬小蜂科2种和寄蝇类,平均寄生率12.89%。蛹期的寄生天敌有毛瓣奥蜉寄蝇Austrophorocera hirsuta、日本追寄蝇Exorista japonica、条纹追寄蝇Exorista fasciata等,平均寄生率是13.30%。卵期未发现任何寄生性天敌。从幼虫到蛹期,寄生性天敌平均可降低舞毒蛾种群数量22.17%。
Eggs, larva and pupa of Lymantria dispar were collected and raised. And then six species of tachinids and eight species of parasitoids in four families were found and identified. In the larval phase, Dibrachys cavus in Rcromalidae, Eurytoma verticillata and E. sp. in Eurytomidae, three species in Braconidae, two species in Eupelmidae and the tachinid were identified. Their parasitism of L. dispar was 12.89%. In the pupalperiod, Austrophorocera hirsute, Exorista japonica and Exoristafasciata were identified and their parasitism of L. dispar was 13.30%. Whereas, the parasitiods of L. dispar were no found in the egg stage. 22. 17% of the population quantity of L. dispar was reduced by parasitiods.
出处
《林业科技》
2012年第2期21-23,共3页
Forestry Science & Technology
基金
东北林业大学本科生创新实验项目"舞毒蛾寄生天敌及其自然控制研究"(101022508)
关键词
舞毒蛾
寄生天敌
自然控制
Lymantria dispar
Parasitical enemy
Insects natural control
