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Vol. 22, No. 5, May 11, 2007

Living with lichens Bert Cregg Horticulture and Forestry


Lichens often cover the trunks of trees but do not harm the host.

The algae in lichens are photosynthetic, enabling them to grow on non-living substrates.	Lichens completely cover branches in some forest trees. Photo credit: Dave Powell, USDA Forest Service, www.forestryimages.org

The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
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