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2021年全国玉米病虫害将偏重发生
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2021年全国玉米病虫害将偏重发生
3月11日,全国农业技术推广服务中心(全国农技中心)印发玉米等农作物重大病虫害防控技术方案的通知。其中提及预计2021年全国玉米病虫害将偏重发生,玉米"三病一虫"预计累计发生面积4.4亿亩次(2,933万公顷),同比增加13.4%。草地贪夜蛾发生涉及黄淮海及以南玉米种植区,预计见虫面积4,000万亩(267万公顷),其中长江以南占80%;粘虫在北方和西南部分玉米产区可能出现高密度集中危害,预计发生面积7,500万亩次(500万公顷);玉米螟在东北大部中等发生,黄淮大部和西南局部偏重发生,预计发生...
Insecticides China News (Chinese version) 202103
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