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海棠花叶子上长白霉怎么办
更新时间: 2020-08-15 00:00:00  

1.是蚧壳虫,棉白蚧。用融蚧或蚧杀1000倍,加1000倍农药增效剂。草履蚧或棉白蚧是蜡壳,农药增效剂是增加附着力。间隔5至7天一次,两次就可以了;

2.海棠适宜在光照充足的环境中生长,在庇荫的环境下则生长不良。如果盆栽生长期要放在光线充足的地方。冬季在零下十五摄氏度低温条件下也不会受到冻害,可在室外露地越冬。但在寒冷异常的冬季则需采取防寒措施;

3.浇水结合施肥进行。每年秋季落叶后要施1次大肥,补充花果消耗的养分,以施腐熟的有机肥为好。同时结合冬灌浇水,春芽荫动前,施1次有机肥,并浇1次透水。

关键词: 海棠花 叶子 长白 怎么办

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