如何防治山茶花的常见虫害

危害山茶花的害虫较多，但最常见的有下述几种： (1)介壳虫。此一类虫共有十几种，是严重危害山茶花的害虫，在夏季高温、高湿、通风不良的情况下发生。此虫常密集在嫩枝、叶片、叶脉上，用口器刺入植株体内

&nbsp&nbsp&nbsp&nbsp花木的害虫种类繁多，大体可分为食叶害虫、刺吸害虫及螨类、枝干害虫和地下害虫等4类。&nbsp&nbsp&nbsp&nbsp（1）食叶害虫。这方面有刺蛾、毒蛾、夜

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