杨树苗树干黑斑防治(叶斑病特效药和图片)

植物图片 2022-01-02 14:29

想要预防杨树苗的树干长黑斑，可以在生长期间，给予其充足的光照、水分和肥料，能够提高杨树苗的抗病能力。后期养护，定期给杨树苗喷药，可以预防病虫害。想要抑制黑斑病，可以修剪病叶，再给其喷洒百菌清或多菌灵药剂。

杨树苗树干黑斑的防治方法

杨树苗树干黑斑防治

杨树苗在生长期间，叶片出现黑斑，可能是得了黑斑病。想要抑制黑斑病，需要将病叶剪掉并集中烧毁，切断传染源。修剪后，可以给杨树苗喷洒百菌清、多菌灵或甲基托布津等药剂，药剂7～10天可喷1次，需要连续喷洒3～4次。

杨树苗树干黑斑防治

杨树苗在后期恢复后，想要预防黑斑病，需要加强管理。在生长期间，给予杨树苗充足的光照、水分和肥料，促使杨树苗正常生长。充足的光照和水肥，能够使杨树苗长势更好，生长期间，可以提高杨树苗的抗病能力。

杨树苗树干黑斑防治

想要预防杨树苗得病，在其生长期间，需要定期给其喷药。在养护期间，一般20～30天之间，可以给杨树苗喷1次多菌灵或百菌清等药剂。定期给杨树苗喷药，能够有效的预防病害，还能避免蚜虫和红蜘蛛等虫类侵害杨树苗。

杨树苗树干黑斑防治

杨树苗在生长期间，需要加强管理，要根据其生长习性，进行合理的养护。杨树苗喜光照，不耐强光，在夏季期间，需要做好遮荫工作，避免杨树苗被烈日灼伤。杨树苗在生长期间，不耐水涝，需要适量的浇水，使其能够正常生长。

专题： 杨树苗
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