白玉兰叶枯黄怎么办

植物图片 2021-05-13 11:16

我们都知道，这种植物的花朵是非常优美动人的，我们养植它也主要是为了看花儿。但是，再好看的花也需要用绿叶来配。如果叶子都发黄了，那么不仅没法称出花的妍丽，反而会破坏植物的整体形象。在日常生活中，许多人会苦于发现自己辛辛苦苦养的植物竟然出现了叶片发黄的现象，那么这时候该怎么办呐？

出现该现象的缘故

第一种就是虫害了，可能会有一种颜色呈现红色的蜘蛛，它们会不断地吸取植物叶片中的液体，结果会导致其叶子发黄。

第二就是病害了，具体来说这种病叫做“黄化病”，从名字中也可以看出来它会使植物的叶子变黄。

第三种就是盆土的PH值太高，或者浇灌的时候用的水时碱性的，因为这种植物比较喜欢在偏酸性的土壤中成长。如果超过了规定的PH值，那么也可能会出现植物叶子变黄的现象，甚至还会危及到根系。

第四，我们首先应该知道，这种植物是非常怕涝的。如果我们浇水浇得太多，导致盆土非常湿，并且持续时间太长的话，也可能会造成这样的后果。所以，这也是一个可能的原因。

防治措施

针对病虫害，也就是第一个和第二个原因，有专门针对它们的药剂，这里就不做过多解释了。

至于第三种，我们可以选择浓度为百分之零点二的（FeSO4）溶液喷洒叶片表面，频率可以控制到五天或者一个星期一次。

那么，对于第四种，我们需要做到的就是合理、科学地浇水。总体来说，这种植物是既怕干旱又怕涝的，我们可以通过观察它的花来决定是否浇水。如果花瓣过度地向外扩大时，就表明植物缺水了；反之，花在含苞的状态时，就说明水分是足够的。

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