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亚洲玉米螟幼虫转移规律及防治适期研究
引用本文:王桂跃.亚洲玉米螟幼虫转移规律及防治适期研究[J].科技通报,1998,14(2):143-146.
作者姓名:王桂跃
作者单位:浙江省东阳玉米研究所(王桂跃),东阳市植保站(卜卫良)
摘    要:通过对亚洲玉米螟幼虫转移规律及防治适期的研究,明确了在心叶末期前90%的幼虫集中在雄穗中,抽穗后才分散转移,大多数幼虫分散到中部和穗部,占总虫数的60%左右.经不同时期防治试验表明,在春、夏、秋玉米连续种植,玉米螟为害严重的地区,在心叶末期防治的基础上,在吐丝期再防治一次,才能有效地减少虫量,提高产量

关 键 词:亚洲玉米螟  转移规律  防治适期

Study on Shifting Regularity of Corn Borer Larvae in Plant and Its Suitable Stage for Its Control
Wang Guiyue Dongyang Maize Research Institute,Zhejiang Bu Weiliang Dongyang Plant Protection Station.Study on Shifting Regularity of Corn Borer Larvae in Plant and Its Suitable Stage for Its Control[J].Bulletin of Science and Technology,1998,14(2):143-146.
Authors:Wang Guiyue Dongyang Maize Research Institute  Zhejiang Bu Weiliang Dongyang Plant Protection Station
Institution:Wang Guiyue Dongyang Maize Research Institute,Zhejiang 322100 Bu Weiliang Dongyang Plant Protection Station
Abstract:The shifting regularity of corn borer larvae in plant and the suitable stage for its control were studied The results indicated that 10% larvae shifted before late whorl stage and 90% gathered in tassels. Then 60% larvae bored into mid stem and ears after tasseling. The results also indicated the suitable stage for its control in different growth stages of corn. Based on the control in late whorl stage,further control in silking stage was also needed in the area cultivated spring corn,summer corn and autumn corn in series where corn was damaged seriously by corn borer.
Keywords:Ostrinia  furnacalis    shifting  regularity  suitable  stage  for  corn  borer control
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