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据全国农业技术推广服务中心通报,据监测,近期东北、华北、黄淮大部地区出现二代粘虫成虫,华北、东北地区诱蛾量明显低于近年同期,黄淮地区大部高于上年,结合二代粘虫幼虫发生情况和未来气象因素,预计三代粘虫总体偏轻发生,华北、东北发生程度轻于前几年,不会出现大面积暴发成灾的情况,发生面积为1500万亩,黄淮等地杂草多、地势低洼和湿度大地块会有集中为害的可能;幼虫为害盛期在7月下旬未至8月中旬。一、二代粘虫发生面积小2016年二代粘虫全国发生2000万亩,比上年减少41%,比重发的
According to the National Agricultural Technology Extension Service Center, according to the monitoring, the second generation of adult armyworms appeared in northeast, north China and most parts of Huanghuai in the near future. The amount of moths in North China and Northeast China was significantly lower than in the same period in recent years. Years, combined with the occurrence of second generation armyworm larvae and future meteorological factors, the third generation of armyworms are expected to occur generally mild, North China, northeast occurred to a lesser extent than a few years ago, there will be no major outbreak of disaster occurred, the area is 1500 Mu weeds, Huanghuai and other places and weeds, low lying and humidity plots will have the possibility of concentration damage; larvae damage peak in late July to mid-August. First and second generation armyworms occurred in small area 2016 Second generation armyworms occurred in the country 2000 acres, a decrease of 41% over the previous year, the proportion of hair