发财树叶子长斑怎么办？五大解决办法

植物图片 2020-01-13 20:25

发财树在栽培过程中，一旦出现叶子有斑点应及时处理，如果病虫危害先进行消毒处理再喷洒多菌灵溶液，浇水过多应保持盆土湿润即可，施肥过多最好定期施肥，土质不当就要重新换土上盆进行处理。

1、病害预防

发财树在养殖过程中，如果发现发财树叶子长斑怎么办才好呢，通常来说我们首先想到的是病虫危害。由于发财树喜欢在高温的环境下生长，此时也是一些病虫害的高发期，特别是叶枯病出现的较多，也是危害力最大的一种病害。

当发财树出现叶枯病的时候，叶子一开始会有一些小小的斑点，然后慢慢的扩张成不规则斑块，而且会感染其他部位，造成植株出现叶子发黄凋落甚至枯萎死亡现象。最好剪除植株上的枯叶烂枝，用以少量的高锰酸钾溶液进行消毒，然后喷洒适量的多菌灵溶液，加强空气流通就好。

2、合理浇水

虽然发财树喜欢温暖湿润的环境下生长，但是如果浇水过多就会造成根部腐烂，叶子不能正常的进行有效光合作用，养分缺失造成出现斑点发黄现象。最好保持盆土湿润即可，通常不干不浇，见干浇透最好，而且天气干燥时可经常向叶子喷水。

3、增加光照

发财树是一种向阳性植物，喜欢阳光充分的环境下生长茂盛。如果光照过少，植株的根部自然不能完成新陈代谢，输往叶子上的养分就会大大减少，从而造成叶子出现斑点慢慢的凋落，最好保持每天有6个小时的光照时间即可。

4、减少施肥

发财树在养殖过程中最好要定期施肥，如果施肥次数过多或者过量的话，就会造成烧根现象，造成植株叶子营养不良出现斑点，而且会慢慢枯萎。最好减少施肥，当叶子出现好转情况后可每隔2周施一次复合肥液。

5、换土处理

由于发财树喜欢在土壤层深厚的排水性良好的沙质土壤中生长，如果土壤透气性不佳就会出现烂根现象，造成叶子有斑点变黄。最好重新换土上盆，将根部上的烂根枯根剪除掉，然后用少量的高猛酸钾溶液进行消毒，在新的盆土中加入少量的小石头再重新上盆最好。

专题： 发财树
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