苹果炭疽病的防治内容摘要:
2、菌的侵染,特别是 7、8 月高温多雨更有利于病菌的传播和蔓延,果实愈接近成熟危害就愈重。 4、病菌侵染过程:时间短,一般潜育期 313 天,病菌接触果面伤口后 510小时就可完成侵染过程。 5、人为因素:果园粗放管理,特别是修剪、疏花疏果、土肥水管理等技术措施跟不上,导致树势衰弱,抗病能力差,防治上又重视不够。 二、防治方法 1、清除菌源:在冬春季清园的基础上,及时摘除初发病果深埋烧毁。 2、加强果园管理:做好夏季修剪,改善通风透光条件,加强土肥水管理,提高树体抗病能力,特别中后期(7 一 8 月)注意磷钾钙肥的补充及雨季果园的排涝工作。 3、果实套袋是解决炭疽病及其它果实病害的有效措施。 4、加强园内易感病品种的监测控制,防止该病的发生扩散及蔓延。 5、喷药防治:山东省 1999 年应用农抗 120 防治该病取得了良好的效果。 药剂可选用 4农抗 120 果树型 600 一 800 倍,或者用 08菌立灭 3 号 600800倍,铜大师 2500 倍。 专利查询。苹果炭疽病的防治
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