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Hyacinth Plant

Q.What chemical to use for plum with green velvet patches on the trunk?

Ljiljana added on May 28, 2012 | Answered

I heard that chemicals having copper is good for that kind of disease.

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Certified GKH Gardening Expert
Answered on May 29, 2012

It sounds like it has lichen, which is harmless to the tree. Here is more information: https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm

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