文山烟区烟青虫发生规律及防治阈值研究  

Research on Occurrence Regulation and Control Threshold of Helicoverpa assulta in Wenshan Tobacco Growing Area

作　　者：周炼川[1] 陈庭慧[1] 李大肥[1] 冯坤[1] 李鹏飞[1] 沈燕金[1] 殷红慧[1] 戴珏[1] 

机构地区：[1]云南省烟草公司文山州公司,云南文山663099

出　　处：《现代农业科技》2016年第3期140-142,共3页Modern Agricultural Science and Technology

基　　金：中国烟草总公司云南省公司科技计划项目"烟青虫预测预报及无公害防治技术的研究"(2010YN13)

摘　　要：对文山烟区烟青虫的大田发生规律及防治阈值进行了研究,结果表明:文山烟青虫在烤烟大田生产周期内主要有2个高峰期,主要集中在5月下旬到6月上旬和6月下旬到7月上旬2个时间段;文山烟青虫防治阈值为0.58头/株,每增加1头幼虫危害,上等烟比例下降0.35%。Occurrence regulation and control threshold of Helicoverpa assulta in Wenshan tobacco growing area was carried out.The results showed that the damage induced by Helicoverpa assulta was concentrated in late May to early June and late June to eraly July;the control threshold of Helicoverpa ass ulta was 0.58 per cigarette. With per Helicoverpa assulta increase, the high class leaf proportion descend 0.35%.

关 键 词：烟青虫 发生规律 防治阈值 烟区 云南文山 

分 类 号：S43[农业科学—农业昆虫与害虫防治]