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Invasive Tree Pests Threatening Forests: A Guide to Identify and Control

Learn about the destructive tree pests such as Asian Longhorn Beetle, Emerald Ash Borer, Gypsy Moth, and Western Pine Beetle, their impact on tree populations, and measures to prevent infestations. Discover how to protect trees from these harmful creatures.

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Invasive Tree Pests Threatening Forests: A Guide to Identify and Control

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  1. Tree Pests Creatures That Bug Our Trees Marina Del Conte Botany 202

  2. Asian Longhorn Beetle • Native to China • Transported to United States in infested packing material

  3. Emerald Ash Borer • Killed 20 million trees in Michigan, Ohio, and Indiana • Firewood quarantines to prevent new infestations

  4. Gypsy Moth • Spread to U.S. in 1870 • Oaks and Aspens are most common hosts • Larva defoliates trees • Small mammals and birds are predators

  5. Western Pine Beetle • Infest Ponderosa and Coulter pine trees • Mainly western states • Tree loss considered normal ecological process

  6. Acknowledgements • Photos and information courtesy of the USDA Forest Service • Forestry.about.com

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