Tree disease - Knowledgebase Question

Philadelphia, Pe
Question by robskitchn
May 6, 2009
I have light greenish stuff growing on my trees, what is it & how do I get rid of it?


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Answer from NGA
May 6, 2009

0

It sounds like lichen which is a mossy type growth. It manufactures its own food so it is not feeding on your trees but it can hold too much moisture against the bark and cause problems down the road. A lime sulfur (Bordeaux) spray will kill the lichen and it will slough off on its own. Be sure to follow label directions for application.

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