晚稻中后期二化螟为害特点及严重发生原因剖析
Damages and occurrence analysis of Chilo suppressalis in late rice field.
沈建新1;张惠琴1;张水妹1;董国堃2
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作者单位：1.浙江省仙居县农技推广中心,仙居317300;2.浙江省台州市农科所,临海317000
中文关键词：二化螟;晚稻中后期;隐蔽性;防治对策
英文关键词：striped stem borer; late rice; enshroud; management strategy
中文摘要：近年来 ,浙江省仙居县晚稻中后期二化螟ChilosuppressalisWalker为害日趋严重。分析原因 ,一是单季稻等桥梁田面积的不断扩大 ,使 8月底至 9月上旬田间出现了全年发生量最大的 2代主蛾峰 ,卵孵化盛期与连作晚稻抽穗期吻合 ;二是冬春气温升高 ,发生期提早 ,2代虫源寄主、
英文摘要：The damage of striped stem borer Chilo suppressalis Walker in late rice becomes more and more serious in Xianju County of Zhejiang Province.The more single season rice was planted as the bridge field area, in which annual biggest main moth summit i