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粘虫是严重为害我区大小麦作物的一种暴食性害虫。1965年前只零星发生,1966年在嘉善、平湖、嘉兴等地局部发生,危害面积39.7万亩。1967年扩大到东部6个县,危害面积98.8万亩,继后从东向西扩大蔓延,1970年全区发生面积达104万亩,其中严重危害的有31.5万亩,损失达5—10%,1972年初步统计,全区发生危害的面积达到109.89万亩。几年来,各地通过对粘虫发生规律的调查研究,认真总结了经验教训,比较系统
Mythimna separata is a binge-eating pest that seriously affects the size of crops in our region. Only sporadic occurred before 1965, 1966 in Jiashan, Pinghu, Jiaxing and other places occurred locally, the damage area of 397,000 mu. In 1967, it was expanded to 6 counties in the east, with an area of 98.8 hectares harmed. After that, it expanded and spread from east to west. In 1970, an area of 1.04 million mu occurred in the whole district, of which 315,000 mu were severely endangered, with a loss of 5-10% According to preliminary statistics in 1972, the area harmed by the disaster hit an area of 1,098,900 mu. Over the past few years, all through the investigation on the regular occurrence of armyworm, seriously summed up the lessons learned, more systematic