Dutch elm disease (DED) is one of the most commonly known and destructive tree diseases in the world. The disease was first observed in Ohio in 1930, and by 1976, only 34 million of the estimated 77 million elms present in U.S. urban locations remained.
Research on American elm from the 1970s to the present has focused in large part on the identification of American elm individuals that can withstand the DED pathogen. To increase American elm’s long-term recovery as a canopy tree, it is crucial to increase the genetic variation of tolerant elms available for planting in urban and rural settings.
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Scientists:
Produced by the USDA Forest Service Northern Research Station.
Want more information? Visit us at https://www.fs.usda.gov/research/nrs/products/multimedia/podcasts/forestcast-season-2-backcross-episode-4-return-elm-street
Questions or ideas for the show? Connect with Jon at: jonathan.yales@usda.gov
Backcross: The Past, Present and Future of American Chestnut
Backcross: How Do You Breed Better Trees?
Backcross: Tree Species Restoration & Resistance Breeding
Searching for Cicadas in the Chattahoochee
The Two-Sided Story of Periodical Cicadas
A Window of Resurgence for Red Spruce
Balance & Barrier: The Future of Forest Threats
Balance & Barrier: The Hornless Asian Longhorned Beetle
Balance & Barrier: When A Single Clone Caused An Invasion
Balance & Barrier: Slowing the Spongy Moth's Spread
Balance & Barrier: Wasps vs. Emerald Ash Borer Beetle
Balance & Barrier: A Slow Explosion of Damaging Forest Insects
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