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2019-03-27T14:00:00.0000000Z
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How tree diversity regulates invading forest pests
https://phys.org/news/2019-03-tree-diversity-invading-forest-pests.html

A national-scale study of U.S. forests found strong relationships between the diversity of native tree species and the number of nonnative pests that pose economic and ecological threats to the nation's forests.


"Every few years we get a new exotic insect or disease that comes in and is able to do a number on our native forests," says Kevin Potter, a North Carolina State University research associate professor in the Department of Forestry and Environmental Sciences and co-author of an article about the research in Proceedings of the National Academy of Sciences.

"Emerald ash borer is clobbering a number of ash species in the Midwest and increasingly in the South. The chestnut, a magnificent tree that had immense ecosystem value as well as economic value in the South and North, is pretty much gone because of a pathogen. And hemlocks are under attack by the hemlock woolly adelgid from the Northeast along the Appalachian Mountains into the South."

Read more at: https://phys.org/news/2019-03-tree-diversity-invading-forest-pests.html#jCp
Diversity
Forests

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