铜钱草叶子有黑点，铜钱草一般会得什么病

植物图片 2021-02-24 10:08

铜钱草叶子有黑点的原因有很多。如果是因为患病生虫，需要将病叶剪除，并喷药防治。如果是因为光照太强，需要把它放到半阴处，避免接受光照。如果是因为气温太低，需要移到温暖处，或用塑料袋套上植株。如果是因为肥料太浓，需要清洗盆土，以后施肥要控制用量。

一、患病生虫

铜钱草的病虫害比较少，本身的适应能力很强，但家庭养殖也难免会被其它植物上的害虫侵害。针对病虫害，一定要找到源头，对于患病严重的植株要进行拔除，病症轻微的可以适当修剪，并且要注意喷药，这样可以有效治疗。

二、光照太强

铜钱草是一种不太喜光的植物，如果光照太强烈，植株的叶子就容易被晒伤，此时会有黑点，而且还可能枯黄。一般需要将植株放到半阴处，让它接受散射光即可。如果是夏季一定要避免受到阳光直射，冬季可以适当增加光照。

三、气温太低

铜钱草的耐寒性不是很强，一旦被冻伤，植株也容易生长不良，叶子上有可能会出现黑斑。冬天一定要将植株放到温暖的地方，或者用塑料带将它的上部套起来，这样也能起到保温的效果。袋子上要扎几个洞，保证良好的通风和透气。

四、施肥太浓

铜钱草对肥料的需求较高，但施肥一定要薄肥勤施，如果肥料浓度太高，很容易烧伤它的根部，导致叶子有黑点。通常要用清水将土壤中的肥料洗去，如果情况严重的话，也可以给植株换盆换土，并放到阴凉的地方进行保存养护。

专题： 铜钱草 红树林
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