血叶兰的病虫害防治

植物图片 2021-03-06 11:55

现在很多人都是特别的喜欢养一些植物来欣赏，但是却总是在这个时候，一些可恶的病虫却总频频来烦扰它们，让它们根本没有办法正常的生长下去，也让我们变得头疼不已，想着该怎样才能去拯救自己心爱的花草。比如血叶兰，它一旦遇到病虫危害，应该如何应对呢？一起来看下。

1.鞘锈菌

它通常都是发生在叶子的上下表面，也有很少的会在茎上面出现凸起的小疱，里面有着黄色、橙色、锈色或者甚至是紫黑色的粉状孢子。其实上，锈病根本就不会致命的，叶子也不会死掉的，但是却会让它的植株生长开始变得衰弱。一般防治方法就是可以把它的病叶给剪去了，另外还可以用一些化学药物进行喷洒。

2.白绢病

这个病一般都是发生在霉雨的季节。刚开始发病的时候，叶子基部上面会长满了白色的茵丝，还会让它的根茎全部烂掉。那我们一般防治的办法就是，将带有菌的花盆和土壤去掉，再撒上一些石灰。如果想要根治的话，就必须要注意多通风，盆土里的排水性也要好，如果发病严重的话，就要把那些病株给烧毁了。

3.炭疽病

这种病一般一年到头都是有的，在温度比较高或者是多余的季节更加的厉害。它一般刚开始先从叶子尖向根茎的地方开始延伸下去，颜色最初是褐色的，然后就会慢慢的扩大增多了，叶面上长黑点斑，严重的时候就可以让整个植株都死掉，那如果进行防治的话，除了要把环境条件改善一下之外，还要在发病时间内，用一些药物进行喷洒，一般每7到10天就要一次，把它给彻底跟除掉。

4.介壳虫

它有时候还叫做兰虱。在温度比较高和空气流动不畅的时候，这类虫害繁殖的会更加快一点，那么就会对它的植株造成很大的伤害，严重的时候也是会让它死掉的。如果数量不是很多的话，那我们就可以人工刷除掉就可以了，但是如果数量很多的话，就需要用一些化学药物了。

专题： 血叶兰
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