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为害水稻的金翅夜蛾在赣榆县有三个虫种,即金斑夜蛾(Chrysaspidia festucae L.)、稻金斑夜蛾(C.festata G.)各C.major W.,以第一种发生较多。本文着重报道该虫在赣榆的发生和危害情况。其幼虫主要危害水稻和小麦,并取食稗草、看麦娘等禾本科杂草,以及莎草科和香蒲科植物,每年发生4代,以低龄幼虫在麦田越冬,来年以第一代为害水稻最重。 造成本地大发生的原因有三:1.连续数年夏季没有酷暑;2.越冬代蛾量基数大;3.有丰富的紫云英和苕子等蜜源植物。1976年第一代幼虫大发生,就是同时具备上述三个条件造成的。 探讨了测报途径和方法。 提出了综合防治的办法。使用常用农药防治的效果良好,
There are three pests in Ganyu County, namely Chrysaspidia festucae L. and C. festata G. Each of C. major W., More happened. This article focuses on the occurrence and harm of the insect in Ganyu. Its larvae mainly endanger rice and wheat, and feeding barnyardgrass, Anemia and other grasses, and Cyperaceae and cattail plants, 4 generations occur each year, with young larvae in the winter wheat field, the first generation of the next year to harm The heaviest rice There are three main reasons for the local big occurrence: 1. There is no summer heat for several years in summer; 2. Large amount of winter moth base; 3. There are rich nectar plants such as milk vetch and razor clam. In 1976 the first generation of larvae occurred, is at the same time with the above three conditions caused. Explore the ways and means of reporting. Put forward a comprehensive approach to prevention and control. The use of commonly used pesticide control effect is good,