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粘虫是多食性,迁飞性害虫,主要为害麦类,玉米,水稻,甘蔗等禾本科...
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水稻纹枯病菌主要以菌核在土壤中越冬,也可以菌核或菌丝在病稻草、田...
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从综合防治的角度论述怎样才能防止或减少植物病虫害的发生。...
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