摘要
１９９７年，草地螟（Ｌｏｘｏｓｔｅｇｅｓｔｉｃｔｉｃａｔｉｓ）在我国华北及东北地区大发生，造成了巨大的经济损失。笔者采用黑光灯诱测和普查幼虫的方法，调查了１９９７年草地螟在河北省的发生情况。对调查结果的分析表明：１、草地螟的为害有以下特点，即周期性、蛾量突增突减现象，一代幼虫为害严重而二代为害较轻以及对寄主的选择性等；２、草地螟之所以能够暴发为害，主要是其杂食性、迁飞性和幼虫的二次迁移习性以及适宜的气候条件造成的；另外，受害区群众认识不够，准备不足也是造成重大损失的原因之一。针对以上事实，文章认为加强科技意识教育、严密监测草地螟发生动态、推广黑光灯诱杀成虫技术并辅以药剂防治是有效控制草地螟暴发的基本措施。
Meadow moth (Loxostege sticticatis) occurred seriously in the north and northeast of China in 1997,and heavy losses were caused .Based on the meadow moth occurrence facts of 1997,we considered that it's occurrence has the following characteristics:1.it occurred periodly,2.the moth group increased and decreased sharply,3. the first generation caused damage seriously and the second one slightly or no damage,4.it has host selection.As the causes of it's eruption ,the paper suggested that it was wide ranging hosts,migration behaviour,the second movement of larva and the desire climate,and the ignorance of farmer also was an important factor causing huge losses.Finally,this paper suggested that the effective measures for control of meadow moth should be enhancing the education of science and technology consciouses,keeping close watch over the group fluctuation ,spreading the application of moth killing lamp and spraying insecticides promptly.
出处
《植保技术与推广》
1998年第2期16-19,共4页
Plant Protection Technology and Extension
关键词
草地螟
暴发原因
防治
meadow moth (Loxostege sticticatis) the causes of the eruption control measures
