非洲菊的病虫害及其防治

植物图片 2021-04-04 13:45

斑点病：可用甲基托布津可湿性粉剂喷洒治疗。白粉病：需及时剪除病叶，并且喷洒70%甲基托布津1500倍液，进行治疗。蓟马：可以使用敌敌畏药剂或者是吡虫啉药剂喷杀。

非洲菊的病害及其防治

斑点病

斑点病是是一种细菌性病害。一般会是病菌，借助雨水和昆虫等方式传播的。发生斑点病需要及时的摘除病叶，并喷洒甲基托布津可湿性粉剂的溶液进行治疗。

花叶病

非洲菊也会遭遇花叶病，发生花叶病会使非洲菊的叶片颜色褪绿，叶子畸形，长有斑块，并影响开花或者植株死亡。发生花叶病需要及时喷洒药剂治疗。

白粉病

非洲菊爆发白粉病，主要是危害叶片，出现白色病斑并逐渐扩大。非洲菊发生白粉病大多是由病菌引起的，在气温高并且通风不良的时候容易爆发。发生白粉病需要及时改善生长环境，喷洒药剂，例如70%甲基托布津1500倍液。

叶斑病

叶斑病也是非洲菊常见的病害，发生叶斑病也是在叶子上产生病变。一般发生叶斑病多是环境因素，光照不足或者排水不良导致的。发生叶斑病，可以使用多菌灵药剂喷洒。

灰霉病

灰霉病也是由病菌引起的，危害较大，在湿度较高的时候，容易发病。控制湿度是防治的关键，可以加强通风，在发病的初期需要甲基托布津溶液进行防治。

此外，非洲菊还有根腐病、病毒病、核菌病、疫病等。需要根据病发的情况进行治疗。

非洲菊的虫害及其防治

白粉虱

白粉虱非洲菊常见的虫害，发现害虫需要及时的清理非洲菊的生长环境，选择药剂并正确用药，避免因抗药性而导致白粉虱驱虫不明显。

蓟马

蓟马也是非洲菊常见的虫害，发现蓟马的时候，蒸煮农药是很好的方法。可以使用敌敌畏药剂或者是吡虫啉药剂进行喷杀。

菜青虫

菜青虫的危害主要分幼虫和高龄幼虫危害，需要及时的喷杀害虫，多喷几次，防止危害进一步扩大。

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