金钱树冻伤怎样补救？冻伤程度分析及解决办法

植物图片 2019-11-19 21:43

和发财树一样，金钱树由于名字有着非常好的寓意，也是人们最喜欢的镇宅植物之一。金钱树源产地于非洲东部热带草原，怕冷不怕热，如果冬天气温低于8℃很容易会被冻伤，那么金钱树被冻伤我们该怎样处理呢？下面一起来学习下。

金钱树冻伤怎样处理

金钱树冻伤怎样处理

一、冻伤程度分析及解决办法

冻伤也有份轻重，不同程度采用不同的措施：

1）冻伤程度：轻微；

补救措施：施叶面肥。

如因寒露、寒风、晨霜或倒春寒等引起叶子黄化、卷缩问题，末级梢干枯或树势衰弱的可用植物防冻剂加0.1{bf}尿素作叶肥喷施2-3次。但注意施用浓度应低于平常施用浓度。

当室温下降到8℃以下时，可套上双层塑料袋，连盆也套上。如果长时间持续低温，可用大可乐瓶灌满热水，用旧棉絮或旧衣服包好摆在塑料套内的花盆上，目的是不让塑料套内升温太快和太高，保温时间又长；在气温回升后再解去套袋。在此期间要经常打开塑料套让植株透透气，盆土太干可浇些水，但不能多浇，冬天盆土不能太湿。如果受到冻害的叶子腐烂了，得赶紧处理掉。

2）冻伤程度：重度冻伤，受冻枝叶永久萎蔫；

补救措施：首先保根。

这种情况多少是突然遭受异常低温天气或连续霜冻袭击，叶子失水严重，出现永久萎蔫时，应加强灌溉，中耕松土，并在树盘上覆盖厚层稻草。同时，摘除或打落枯萎叶子、轻截失水的末端枯枝、确保地上地下部位的水分供应平衡，根系不受影响。

二、、冻伤后恢复措施

冻伤后待天气回暖应及时进行修剪，春天萌芽时是最好时机。

冬天受冻后不宜即刻作大幅度修剪，以免加重冻害程度。若因冰雪压断枝条，应及时捆扎，并设立支柱或吊枝固定，尽量保留和挽救伤枝。通常受冻落叶或干枯的树枝应推迟到春天萌芽时再修剪处理，坚持“重伤重截，轻伤剪”的原则。

修剪时选择晴朗天气，通常短截应剪到健康部位以下2厘米左右。重截或回缩到主枝、副主枝时应依据树冠基枝状况，选留合理适度的壮芽，在芽上2厘米处锯断，重新培养主枝、副主枝。锯口要平，用快活林愈伤膏保护剂涂上。冻树修剪后，新芽萌发杂乱繁多，应及时疏芽摘心，尽早恢复树冠。

三、受冻后重点预防病虫害

受冻后树势衰弱，应增施有机肥料，及时防涝防旱和病虫防治。特别是冻后最易发生树脂病(流胶病)，可在5月中旬和9月中旬刮去病皮，用75{bf}酒精涂洗后，再涂抹新姿花木杀菌剂100倍效果均理想。此外，要及时防治蚜虫、螨类和蛾蝶类害虫，保护新梢的顺利生长，以利树冠的恢复。

专题： 金钱树
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