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二点委夜蛾是2005年在河北省首次发现报道的新害虫,主要以幼虫躲在玉米幼苗周围的麦秸下钻蛀玉米茎基部造成枯心死苗而缺苗断垄,或咬食玉米气生根造成玉米植株倒伏等症状,严重影响玉米产量。2011年在黄淮海夏玉米区暴发,全国共发生7个省市,发生面积达3290万亩,是近年玉米生产中少见的严重虫害。各级政府高度重视,并作为目前保障夏粮玉米生产的重要害虫进行防控。
The second generation of the night-long moth is the first report in Hebei Province in 2005 reported new pests, mainly larvae hiding under the corn seedling around the corn stalks under the stem of corn caused dead heart seedlings without seedlings off the ridge, or biting corn gas Rooting causes corn plant lodging and other symptoms, seriously affecting the yield of corn. In 2011, the Yellow-Huai-Hai summer corn outbreak occurred in 7 provinces and cities nationwide, with an area of 32.9 million mu, which is a rare serious pest in maize production in recent years. At all levels, the government attaches great importance to prevention and control as an important pest that currently guarantees summer corn production.