小卷蛾斯氏线虫All品系对小菜蛾感染力测定  

Infectivity of Steinernema carpocapsae All strain to the diamondback moth on cabbage leaves

作　　者：金永玲[1,2] 韩日畴[2] 

机构地区：[1]黑龙江八一农垦大学,大庆163319 [2]广东省昆虫研究所,广州510260

出　　处：《植物保护》2009年第5期128-131,共4页Plant Protection

基　　金：欧盟第五框架多边合作项目(ICA4-CT-2001-10003)资助

摘　　要：本文测定了小卷蛾斯氏线虫(S.carpocapsae)All品系对小菜蛾的感染力。结果表明:加入辅助剂的线虫液喷施于蔬菜叶面后,线虫的侵染率显著提高,证明黄原胶是一种很好的抗干燥物质;同时表明线虫的最适宜喷洒浓度为感染期幼虫3 000条/mL;线虫对小菜蛾3龄幼虫的侵染率最高;线虫的侵染率不会随着蔬菜上小菜蛾密度的增加而下降。The infectivity of the entomopathogenic nematode Steinernema carpocapsae All strain to the diamondback moth （DMB） on cabbage was determined. The results indicated that when adjuvants were added and sprayed onto the cabbages, the infectivity of the Us significantly increased, indicating xanthan gum was the best anti-desiccants. The suitable dosage was 3000Us/mL. The infectivity of the Us to the DBM third-instar larvae was higher than to younger larvac. In addition, the infectivity of Us was not reduced with increase of the density of the DBM on cabbage

关 键 词：小卷蛾斯氏线虫 小菜蛾 辅助剂 

分 类 号：S476.15[农业科学—农业昆虫与害虫防治]