棉铃虫卵在不同生育期玉米上的分布
Distribution of eggs of Helicoverpa armigera on corn during different growing stages.
苏战平1;翟保平1;张孝羲1;戴率善2
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DOI:10.7679/j.issn.2095-1353.2001.035
作者单位:1.南京农业大学植物保护学系,南京210095;2.江苏省丰县植保站,丰县221700
中文关键词:棉铃虫;卵;玉米;分布
英文关键词:Helicoverpa armigera; egg; corn; distribution
中文摘要:1998年在江苏丰县系统调查了棉铃虫卵在不同生育期玉米上的垂直分布和水平分布。表明棉铃虫在抽雄扬花期以前的玉米上产卵 ,2代期间叶片正面占总卵量的 93.5% ,茎杆上占 6.5% ,3代期间叶片正面占 89.5% ,茎杆上占 10.5% ;抽雄扬花期主要产在雄穗和新鲜的雌蕊花丝上 ,分别占 59.
英文摘要:Systemic investigation of both vertical and horizontal distribution of eggs of Helicoverpa armigera on corn during three growing stages were carried out. The results indicated that before male heading 95% of eggs oviposited during the second genera