白刺古毒蛾防治指标研究初报  

A Study on the Action Threshold for Controlling Orgyia antique

作　　者：杨帆[1] 

机构地区：[1]青海大学农牧学院草业科学系,青海西宁810003

出　　处：《福建林业科技》2010年第1期37-38,64,共3页Journal of Fujian Forestry Science and Technology

基　　金：青海省科技厅项目;柴达木盆地白刺害虫的发生规律及控制技术研究与示范(2006-N-556)

摘　　要：采用室内饲养和野外扣笼的方法对白刺古毒蛾进行了食量及防治指标的分析测定。结果表明,古毒蛾虫口密度与白刺鲜草产量呈显著相关,随着古毒蛾虫口密度的增加,白刺鲜草产量明显降低。初步确定了古毒蛾的防治指标为12.78头.m-2,古毒蛾的经济允许水平为4.33%。The study of the feeding amount and action threshold of Orgyia antique was made by the means of feeding in door and covering in field. The losing rate tests showed that： the Orgyia antique＇s population density is correlated significantly with the wet mass of the Nitraria tangutorurn vegetation, with increasing of the Orgyia antique＇ s density, the yield is reduced obviously. The controlindex of Orgyia antique was 12.78 larva/m^2, and its Economic Injury Levels （EIL） was 4.33%.

关 键 词：白刺 古毒蛾 取食量 防治指标 

分 类 号：S812.6[农业科学—草业科学]