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据全国农技中心在7月15~16日召开的2014年下半年病虫害发生趋势会商暨全国病虫测报标准化区域站建设现场会消息,预计今年秋粮作物重大病虫将偏重发生,其特点:一是病虫害发生程度重于上年,发生面积约23亿亩次,同比增加5%。二是害虫重发种类多。稻飞虱、稻纵卷叶螟和玉米螟等在常发区大部将偏重至大发生,局部严重发生;渤海湾、黄河滩区等重点蝗区将出现东亚飞蝗高密度点片,内蒙古、新疆农牧交错区局部将出现土蝗由草
According to the National Agricultural Technology Center in July 15 ~ 16 held in the second half of 2014 pest occurrence trend consultation and national pest forecast standardization regional station construction site will be news, is expected to fall this year, major pests and diseases of autumn crops will be emphasis on its characteristics: First, the occurrence of pests and diseases was heavier than that of the previous year, with an area of about 2.3 billion mu, an increase of 5% over the same period of last year. Second, many types of pests re-issued. Rice planthopper, rice leaf roller and corn borer and so on in most of the common areas will be heavily to large occurrence, local serious occurrence; Bohai Bay, the Yellow River Beach and other key locust areas will appear high-density locust spots, Locust, Inner Mongolia , Xinjiang Agro-pastoral area will appear local grasshopper grass