碰碰香长蚧壳虫怎么办

植物图片 2021-04-12 17:26

蚧壳虫繁殖快，极易群聚于叶片，吸食枝叶，造成枝叶枯萎死亡。对于这种顽固虫害到底要怎样才能根除？

当你的碰碰香长虫子真的是丑爆了，要怎么拯救它呢？

1、合理修剪、整枝

蚧壳虫通常情况下会聚集在植株的的枝条上，冬季要对植株进行修整。

将长势过旺的枝条剪短，降低枝叶间的密度，改善通风透光条件，减少蚧壳虫的发生。

将长有蚧壳虫的枝条剪除，降低虫子的密度。对于剪下的枝条，无论是否有虫害都要烧毁。

修整过后，要加强水肥管理，促进抽发新枝，让植株恢复到正常的状态。

2、刮除虫体

在虫害初期，可以人工除虫，直接用竹片将虫子刮除。在操作过程中，不要刺破叶片，影响植株生长。

3、保护和放养天敌昆虫

这个方法不适合家庭除虫。不过真的可以抓到一两只还是可以尝试的。

蚧壳虫的天敌就是瓢虫，例如澳洲瓢虫、大红瓢虫是很有效的生物防治方法。家庭中你也可以自行抓取瓢虫放在盆栽中，还是有效果的哦！

4、药剂防治

在发病初期，也就是刚刚出现虫卵时，直接喷洒触杀剂就可以。

当虫害严重时，可以用氧化乐果乳油1500倍溶液喷雾，5~7天喷一次，1~2次就见效。

专题： 碰碰香
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