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Black rot, 温度高、雨水太多、土壤偏酸所致。要剪枝,透光通风排水。喷石灰水或撒石灰或喷除霉剂。

fuz 2020-07-14 10:23:44 ( reads)

http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/pests-and-problems/diseases/fruit-spots/black-rot-of-grapes.aspx

 

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