凤尾竹长介壳虫怎么办？凤尾竹介壳虫消除的4个方法

植物图片 2019-12-23 09:58

凤尾竹枝叶茂盛，观赏性高，成为很多花友们青睐的对象。那么种植的凤尾竹长介壳虫怎么办呢?我们可以进行人工消除、药物喷杀、生物防治并加强护理，就可以消灭掉介壳虫了。去掉介壳虫的凤尾竹只需正常养护，就可以健康生长了。

一、凤尾竹介壳虫消除的4个方法

1、人工消除

凤尾竹长蚧壳虫的时候会致使枝叶出现不明液体，它们多是蚧壳虫的分泌物。我们可以用棉球沾取风油精、食醋、烟灰水、酒精轻刮叶面，或者用柴油、水、洗衣粉勾兑出来的的液体进行喷杀。这样既能杀掉幼虫，也能预防第二年继续遭致蚧壳虫侵袭。同时要剪掉病叶并烧毁，防止传染。

2、药物喷杀

我们进行喷杀时宜选择蚧必治750～1000倍液等高渗透药剂，以致蚧壳虫误食含有毒性的植株汁液而死亡。因此药剂易流通，我们可选择在高温的下午喷杀，加速渗透，最好一星期左右喷杀两次。或者使用可用40%氧化乐果1000倍液、杀扑磷或者噻虫嗪，每隔一个星期喷一次。喷杀时不仅要喷在叶上面子，还要注意灌根，以杀死土壤里面的虫卵。

3、生物防治

凤尾竹植株较为高大，药物喷杀的话需要使用很多的药剂，很容易影响周边环境。而且一旦没有控制好使用量，不仅不会对蚧壳虫产生良好的防治效果，还会危及凤尾竹本身。所以凤尾竹长介壳虫怎么办成了很多花友的问题。我们可以利用蚧壳虫的天敌，例如瓢虫、褐叶圆蚧等对其进行捕食，是一种天然无污染的治疗方法。

4、加强护理

我们在种植凤尾竹之前要进行严格的检疫，从根源上杜绝蚧壳虫的传染。平时护理要增施肥料，增加凤尾竹的抵抗力，对枝叶勤加修剪，加强通风透气，防止幼虫繁殖。高温潮湿的环境易给蚧壳虫生存提供温床，所以我们平时也要注意对凤尾竹降温，将其搬到阴凉的地方，控制浇水量。

二、凤尾竹的5个养护技巧

1.肥沃土壤

凤尾竹喜疏松肥沃，排水良好、透气性强的肥沃土壤，适合的PH值在4.5～7.0之间。因此盆土最好采用富含腐殖质、蛭石、沙质岩、硫酸亚的田园土混制，切忌不可用粘性强的碱性土壤。

2、经常施肥

凤尾竹的枝叶茂盛，株型壮实，因此我们要保证土壤的肥力。底肥最好以厩肥、骨粉 在秋冬注意增化肥或杂肥，有助于新笋发育。生长期内最好用速效肥，每月薄施一次即可，平时只需每季补施一次有机肥料。

3、适量浇水

凤尾竹喜潮湿，因此我们要保持盆土湿润。春天凤尾竹萌发新笋，蓄水量大，我们要保证每天浇一次水。夏天蒸发量大，我们要每天浇水或对枝叶喷水保湿。秋冬可适量减少浇水量，一星期左右浇水一次即可。尤其冬天低温，一定要防止过涝烂根。

4、光照充分

凤尾竹对光照的要求不高，喜光且耐阴，平时最好将其放置在向阳通风的窗口或者阳台，不宜长期室内种植。冬天要注意补充分够的光照，促进光合作用。

5、调控气温

凤尾竹不耐严寒和高温。冬天气温过低时，要注意移置室内进行保温，最好将气温维持在10℃以上。高温时候要时常喷水，防止水分蒸发以后植株缺水干枯。

通过上文的介绍，相信大家都知道如何利用药物、良好的管理和介壳虫的天敌去防治凤尾竹的介壳虫了，希望大家都能够种植出美丽的凤尾竹。

专题： 凤尾竹
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