Tree pests 2
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The emerald ash borer, native to China, was transported to the United States in infested packing material in the late 1800s. It has since killed over 20 million ash trees across Michigan, Ohio, and Indiana by tunneling under the bark and feeding on the cambium layer. While oaks and aspens are most commonly infected, the emerald ash borer also threatens ponderosa and Coulter pine trees in western states, though tree loss from infestation is considered a normal ecological process.
Tree pests 2
- 1. Creatures That Bug Our Trees Johanna Neri Botany 202
- 2. Native to china transported to United States in infested packing material
- 3. Killed 20 million trees in Michigan, Ohio, and Indiana. Firewood quarantines to prevent new infestations
- 4. Spread to U.S. in 1870 Oaks and Aspens are most common hosts Larva defoliate trees Small mammals and birds are predators
- 5. Infest ponderosa and Coulter pine trees Mainly Western sates Trees loss considered normal ecologic process
- 6. Photosinformation courtesy of the USDA Forest Service • forestry.about.com