摘要
通过江苏太仓甜菜夜蛾田间种群的调查、性诱、灯诱及系统解剖资料表明 ,甜菜夜蛾在太仓 1年可发生 7代 ,第 7代是不完全代 ;9月末 1 0月初大批出现的甜菜夜蛾成虫可能是即将迁出的种群 ;田间卵峰日通常比蛾峰日落后 5～ 6d ;寄主选择性调查表明 ,甜菜夜蛾喜欢在十字花科植物上产卵和取食。
A field investigation of beet armyworm populations was carried on in Taicang County, Jiangsu Province. Pheromone and black light trapping plus examination of ovaries found that there were 7 generations in Taicang a year and that the 7th was incomplete; a large adult population of Spodoptera exigua from the end of September to the beginning of October was probably on the verge of migration; data from the field investigation determined that egg peak usually occured behind the moth peak by 5～6 days. A host selection survey determined that beet armyworms prefer ovipositing and feeding on vegetables of the mustard family.
出处
《昆虫知识》
CSCD
北大核心
2003年第2期136-140,共5页
Entomological Knowledge
基金
国家"十五"攻关项目:农林重大病虫害和农业气象灾害预警及控制技术研究
农作物病虫害灾变预警技术专题部分内容。
关键词
甜菜夜蛾
发生
危害
太仓县
Spodoptera exigua,occurrence, damages, Taicang County
