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茶花生虫怎么办
更新时间: 2020-07-12 00:00:00  

1、山茶在室内、大棚栽培时,如通风不好,易受红蜘蛛、介壳虫危害,可用百分之四十的氧化乐果乳油1000倍液喷杀防治或洗刷干净;

2、梅雨季节空气湿度大,常发生炭疽病危害,可用等量式波尔多液或百分之二十五的多菌灵可湿性粉剂1000倍液喷洒防治;

3、夏秋季温,湿度高,是病虫害多发季节,茶花病虫害主要是介壳虫和黑斑病。因此每半月要喷洒花药一次,没有发现病虫害也要喷洒,做到防重于治。可用氧化乐果溶液等进行喷洒,喷洒时间为上午九时至十时和下午四时至五时,中午烈日不宜喷洒,防止药害。

关键词: 茶花 怎么办

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