据北京市植物保护站预计,今年北京小麦中后期病虫总体为中等发生,其中虫害偏重发生,病害偏轻发生。麦蚜预计偏重发生,发生面积约100万亩次,以穗期蚜虫为害为主,麦蚜发生为害期接近常年。主要发生区为顺义、平谷、昌平、通州、大兴、房山等平原地区。 According to Beijing Plant Protection Station is expected this year, Beijing mid-late pests and diseases in the overall occurrence of moderate, of which pest emphasis occurs, the disease occurred too light. Wheat aphid is expected to place emphasis on the occurrence of an area of ​​about 1000000 acres, mainly to the aphids infestation, wheat aphid occurrence of pests close to perennial. The main area for Shunyi, Pinggu, Changping, Tongzhou, Daxing, Fangshan and other plains.