1985年以来,蟋蟀在我省淮北地区大发生.发生面积估计在1200万亩以上,每平方米见虫6～20头,发生重的地块每平方米见虫30～40头.发生种类在4种以上,其优势种是油葫芦(Grgllus teslaceusWalker) 和大扁头蟋蟀(Loxoblemmusdoenitizi stein) 两种.其危害期长,食性杂,食量大,成虫若虫均可为害,因而严重地影响了农作物的产量和品质.据作者等1987年在蒙城、濉溪、宿县抽样170亩大豆调查,蟋蟀食粒率平均为4.15%,产量平均下降3.67%.为害最严重的3亩地, Crickets occurred in Huaibei area of ​​our province since 1985. Occurred area is estimated to be more than 12 million mu, 6 to 20 heads per square meter, and 30 to 40 per square meter for heavy plots. Four dominant species, Grgllus teslaceus Walker and Loxoblemmus doenitizi stein, had long-term damage, long-term feeding habits, large food intake and adult nymphs, which seriously affected crop Yield and quality.According to the author in 1987 in Mengcheng, Sui Creek, Suxian sampling 170 acres of soybeans survey, crickets food average rate of 4.15%, the average yield decreased 3.67% .The most damaged 3 acres of land,