2003年进入8月份以来,草地螟在山东省枣庄市薛城区暴发成灾。成虫量、幼虫密度之大,为害作物种类之多,为近年来所少见。草地螟成虫一般田间百步惊蛾3000～5000头,最高达2万头以上。蛾量之大,时间之长,面积之广,雌虫抱卵量之高,为新中国成立以来所罕见。一代幼虫地块发生率为100 Since entering 2003 in August, Meadow Borer disaster in Zaozhuang City, Shandong Province Xuecheng District outbreaks. The amount of adults, the density of larvae, as many types of crops, as rare in recent years. Meadow borer adults in general field hundred step frog moth 3000 to 5000, up to 20000 or more. The amount of moths is large, the time is long and the area is wide. The female holds a high amount of eggs and is rare since the founding of new China. A generation larvae block rate of 100