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4月8日~10日,全国农技中心在山东泰安市召开了全国小麦中后期病虫害发生趋势会商会,预计2015年全国小麦中后期病虫总体呈重发态势,程度重于上年和常年,小麦赤霉病、穗期蚜虫大发生态势明显。一、发生趋势1.发生种类和面积。小麦中后期病虫以赤霉病、条锈病、白粉病、叶锈病、纹枯病和蚜虫、吸浆虫、麦蜘蛛为主,叶枯病、根腐病、全蚀病、黑穗病、病毒病、胞囊线虫病、地下害虫、一代粘虫、灰飞虱、麦叶蜂、麦茎蜂、蝗虫等在局部地区会造成一定危害。预计2015年全国小麦中后期病虫害发生约6.9亿亩,占全生育期发生面积的7
From April 8 to April 10, the National Agricultural Technology Center held a conference on the trend of the occurrence of pests and diseases in the mid-and late-stage wheat in Taian, Shandong Province. It is estimated that in the mid-and late-stage of the whole country, , Wheat scab, the emergence of aphids in the panicle is obvious. First, the occurrence of the trend 1. Occurrences and types of area. Wheat mid-late pests and diseases with scab, stripe rust, powdery mildew, leaf rust, sheath blight and aphids, midge, wheat spiders, leaf blight, root rot, eclipse, smut, virus disease , Cyst nematode disease, underground pests, a generation of armyworms, Laodelphax striatellus, wheat leaf bee, wheat stem bees, locusts and other places in some areas will cause some harm. It is estimated that about 690 million mu of pests and diseases will occur in the middle and late stages of the national wheat in 2015, accounting for 7