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From: Lansing, MI
Region: Midwest
Topic: Compost and Mulch, Diseases and Disorders
Title: Need to identify a fungus in a flower garden in Lansinging, MI.
Answered by: Jimmy Mills
What you are describing is very typical of many fungi. They grow in shaded, moist areas with organic matter to provide food. The green dust you mention is a cloud of spores that disseminate the fungus. However, nothing in your description gives Mr. Smarty Plants a clue as to the identity of the fungus in question.
I suggest the you contact the folks at the Ingham County Office of Michigan State University Extension who can provide a mycologist or gardener who can identify the fungus you are describing, and offer suggestions for combating it.
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