Shrubs And Trees
Q.

Tree lichens and copper sulfate

Zone Cincinnati, 45227 | Ejeismann added on April 10, 2017 | Answered

If I want to use copper sulfate to minimize or treat tree lichens is the copper sulfate harmful to animals, especially pets such as cats and dogs?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Answered on April 11, 2017

Yes, Copper Sulfate is a poison to humans and pets.
This link will help you.

https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm

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