2024年7月18日 星期一 19:43:55

怎样防治马铃薯青枯病

    一、选用抗病优良品种
    二、合理轮作选好地块:旱地实行与瓜类、大豆、玉米等轮作3—5年;水田与水稻轮作2年为好。选用土质疏松、排水良好的地块。
    三、合理施肥、多施农家肥、复合肥,减少尿素的使用量,增强钾肥,增强植株抗病能力。
    四、药剂防治:
     1.初期拔除病株,集中深埋,并在病穴撒上生石灰,防止病菌扩散。
     2.初期可用8%可杀的800倍或代森锰锌500倍,或斗角每小包兑水30斤喷雾防治,7—10天喷一次,连续喷2—3次,药物轮换使用效果更佳。
 

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