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Plant Diseases/Moss growing on rose of Sharon tree...remedy?

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Question
I have a rose of Sharon tree with lots of moss growing on it. Can I pull it off without doing harm? What should I use to control not having moss?
Connie

Answer
Connie:
These growths are probably lichens. They are not considered disease organisms.  They are a collection of a fungus and an algae growing in a symbiotic relationship. They can also grow on rocks,fence posts,etc. Usually found on older or stressed plants. Can be rubbed off,but will return.

Plant Diseases

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Dr Stephen Vann

Expertise

Plant Diseases and Disorders of Lawn Grasses, Trees, Vegetables,and Ornamentals

Experience

Plant Diseases Identification and Management

Education/Credentials
B.S. Botany --- Miss. State Univ. M.S. Plant Pathology --- Miss. State Univ. Ph.D. Plant Pathology --- Texas A & M Univ.

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