亚洲玉米螟Ostrinia furnacalis Guenee幼虫取食位置初探  

Feeding Locations of Larvae of Ostrinia furnacalis on Corn Plants

作　　者：吕仲贤[1] 杨樟法[1] 王桂跃[1] 卜卫良 

机构地区：[1]浙江省农业科学院,浙江省东阳玉术研究所,东阳市植保站

出　　处：《科技通报》1994年第6期373-376,共4页Bulletin of Science and Technology

摘　　要：通过人工接虫、室内试验和田间调查的方法分析亚洲玉米螟幼虫的取食位置．结果表明幼虫在分散前集中在未抽出的雄穗上取食，分散后主要取食玉米中部的茎和雌穗；喇叭口期以前的幼虫为害虽然造成花叶，但其成活率很低，对玉米影响不大。建议在玉米抗螟性鉴定时应考虑玉米茎和雌、雄穗对幼虫的作用，在防治时采用喇叭口末期集中施药和抽雄期适当去雄的方法。This study was conducted with artificial infection,laboratory test and field investigation. The results in-dicated that the larvae fed early tassels together before tasseling, then they bored in mid-stem and ears aftertasseling.Before whorl stage there was little effect of larvae on corn plants although they fed leaves.The re-sults suggest that the application of pesticdes should concentrate on late-whorl stage associating with distas-seling, and screening for host-plant resistance should concentrate on resistance in the stem and the tassel.

关 键 词：亚洲王米螟 取食 抗虫性 虫害防治 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]