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中晚稻病虫害总体呈中等发生态势
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中晚稻病虫害总体呈中等发生态势
摘要:2018年7月10-11日,全国农技中心在吉林松原召开了中晚稻病虫害和秋蝗发生趋势会商会,来自水稻主产区19个省(自治区、直辖市)植保机构的测报技术人员和有关专家根据当前病虫发生基数、栽培条件和气候因素等综合分析,预计中晚稻主要病虫害总体呈中等发生态势。其中,稻飞虱在华南、江南和西南东部稻区。稻纵卷叶螟在长江下游稻区。二化螟在江南和西南北部稻区偏重发生。今年盛夏全国大部地区气温较常年同期偏高有利于上述稻区水稻迁飞性害虫的迁入繁殖。关于早稻和单季中稻前期病虫害发生情况,今年上半年,水稻重大病...
Insecticides China News 201807(Chinese version)
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