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Tree Pests

Discover the major pests threatening our trees, including the Asian Longhorn Beetle, which arrived in the U.S. via infested packing material from China, and the Emerald Ash Borer, responsible for the death of 20 million trees across Michigan, Ohio, and Indiana. Learn about the devastating effects of the Gypsy Moth, which has spread since the 1870s, and the Western Pine Beetle, affecting Ponderosa and Coulter pines. This informative guide emphasizes the importance of firewood quarantines and ecological balance in tree health.

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Tree Pests

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  1. Tree Pests Creatures That Bug Our Trees Melanie Hurley 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 defoliate 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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