Research Review

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Preserving and Restoring Tree Species Disappearing From Our Forests

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In our modern forests, entire tree species are in danger of disappearing. This loss may not be obvious because the forest is still there, but several important forest tree species are being killed by nonnative pests and diseases. These are specific to certain species, as their names imply— emerald ash borer (EAB, a tiny beetle), butternut canker (a fungus), beech bark disease (BBD, a scale insect and two fungal species), hemlock woolly adelgid (HWA, a tiny insect), Dutch elm disease (DED, two beetle species and a fungus), and chestnut blight (a fungus). There are many more, however, these particular ones are changing northern and midwestern forests.

View the Spring 2010 Research Review (813 KB PDF)

For more information contact

Jane Hodgins
Public Affairs Specialist
USDA Forest Service - Northern Research Station
1992 Folwell Ave.
St. Paul, MN 55108


Last modified: March 22, 2010