4月12日~14日,全国农技中心在北京组织召开了2011年夏季蝗虫发生趋势会商会。来自蝗区各省的测报技术人员及有关专家对东亚飞蝗、西藏飞蝗、亚洲飞蝗和北方农区土蝗发生趋势进行了会商。东亚飞蝗夏蝗总体中等程度发生,发生面积1250万亩,需要防治面积850万亩,与去年持平。山西运城永济、临猗黄河滩蝗区局部有偏重发生的可能,华北湖库、环渤海湾和黄河滩区其 April 12 to 14, the National Agricultural Technology Center in Beijing organized a summer 2011 locust occurrence trend Chamber of Commerce. The survey technicians and relevant experts from the provinces of the locust areas discussed the trends of the migratory locusts of East Asia, the migratory locusts of Tibet, the migratory locusts of Asia and the migratory locusts of northern China. East Asian locust locust occurred moderate overall, occurred an area of ​​12.5 million mu, need to control the area of ​​850 mu, unchanged from last year. Shanxi Yuncheng Yongji, Linqu Yellow River Beach locust area may have partial emphasis on the possible, North Lake Reservoir, the Bohai Bay and the Yellow River beach area