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See also: Includes Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

See also: Includes Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

See also: Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

See also: Includes Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

See also: Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

See also: Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

See also: Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

See also: Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

See also: Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

Treesearch is an online system for sharing free, full text publications by Research and Development scientists in the USDA Forest Service. Included in Treesearch are scholarly works authored by the agency’s scientists and published by journals, in conference proceedings, or in books. Treesearch also offers scholarly works published by the agency which may or may not have been authored by agency researchers.

Once common across eastern North America, the American elm is deeply ingrained in our nation's history. However, a large portion of the tree population was affected by Dutch Elm Disease beginning in the 1930s. Today, short-lived elms can still be found in forests, but because they tend to be much smaller, they no longer play such an important ecological role. A multifaceted collaborative effort is underway to restore the stately and once dominant American elm to persist on the landscape of the nation's forests.

Forest tree diseases are often caused by infectious pathogens such as fungi and bacteria. Changing climate conditions can influence the spread of infectious diseases and their carriers, and add stresses to trees, making them more susceptible to diseases. Tree disease can also be caused by abiotic conditions such as air pollution, though this page deals primarily with biotic factors. Read the synthesis paper to learn more about these climate-disease interactions and how management strategies can address the potential shifting patterns of tree disease.

From the forefront of forest research, the Northern Research Station invites you inside the largest forest research organization in the world — the USDA's Forest Service. In each podcast episode, you’ll hear stories, interviews, and special in-depth anthologies of the science that's studying, questioning, and solving some of today's most compelling forest issues.

Non-native invasive insects and pathogens are causing significant ecological damage to forests worldwide.  The first season explores biological invasions — and their repercussions — in the Midwest and the Northeast. The second season examines tree breeding and selection to promote resistance to invasive insects and diseases.

See also: Forester Forums for more fact sheets

Published by: University of Georgia. Bugwood Network; USDA. Forest Service.