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四月中国小麦蚜虫将进入发病盛期
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四月中国小麦蚜虫将进入发病盛期
摘要:截止至3月底,小麦病虫发生总体轻于上年同期,麦蜘蛛和蚜虫在局部麦区发生较重。随着气温回升和小麦快速生长,小麦病虫害陆续进入发生高峰期。四月将是小麦病虫害的发病盛期。 据国家气候中心预报,4月份全国大部麦区气温接近常年同期或偏高,华北东南部、黄淮东部、西南地区大部、西北地区中南部、西藏东部等地降水较常年同期偏多,其中西南地区南部降水偏多2-5成,有利于小麦蚜虫等害虫繁殖危害。目前,西南麦区小麦处于扬花期至灌浆期,江淮麦区处于拔节孕穗期,黄淮海麦区处于返青拔节期,西北大部和华北麦区处于返...
Insecticides China News 201804 (Chinese version)
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