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近日,全国农技中心通报近期玉米重大病虫害发生动态,总体呈中等发生程度。当前,各地玉米生育期为:西南和西北地区多处于蜡熟至收获期;黄淮海夏玉米处于灌浆期至乳熟期,春玉米处于乳熟期至蜡熟期,局部地区开始进入收获期;东北地区春玉米多处于灌浆期至蜡熟期。各类玉米病虫害总体中等发生,以玉米螟、蚜虫、大斑病、南方锈病、
Recently, the National Agricultural Technology Center informed the recent occurrence of major pests and diseases of maize, showing an overall moderate incidence. At present, the growth period of maize in each region is as follows: most of the southwestern and northwestern regions are in the period of wax ripening to harvesting; the maize in the Huang-Huai-Hai summer is in the filling stage to the milk-ripening stage, the spring maize is in the period of milky ripening to wax ripening, and the local areas begin to enter the harvesting period; Spring maize in Northeast China are mostly in the filling period to the wax maturity. All kinds of corn pests and diseases generally occur moderately, with corn borer, aphids, maculopapular disease, southern rust,