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农技植保函〔2012〕319号各有关省(自治区、直辖市)植保(植检)站(局)农技中心受种植业结构调整、耕作制度改变、天气降雨频繁、温度适中等多种因素影响,在我国许多水稻、玉米产区粘虫发生偏重。粘虫是一种迁飞性、暴发性的杂食性害虫。8月上旬以来,内蒙古通辽和赤峰、河北廊坊、唐山、保定、沧州、秦皇岛、北京、天津、山西晋中等地三代幼虫相继暴发,面积之大、范围之广、
Agricultural Technology Plant Protection Letter [2012] No. 319 Plant Protection (Phytosanitary) Station (Bureau) Agro-Technology Centers of Various Provinces (Autonomous Regions and Municipalities) Affected by Crop Plant Structure Adjustment, Tillage System Change, Weather Precipitation Frequent, Moderate Temperature and Other Factors In our country, many paddy and maize producing areas have a strong emphasis on armyworms. Mythimna separata is a migratory, fulminant omnivore pest. Since early August, three generations of larvae such as Tongliao and Chifeng in Inner Mongolia, Langfang in Hebei, Tangshan, Baoding, Cangzhou, Qinhuangdao, Beijing, Tianjin and Shanxi Jinzhong have been successively launched with large area and wide scope.