Tree pests
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The emerald ash borer, native to China, was transported to the United States in infested packing material in the 1870s. It has killed over 20 million ash trees in Michigan, Ohio and Indiana by completely defoliating them. Quarantines of firewood aim to prevent further infestations by limiting the spread of this invasive pest to new areas.
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Tree pests
- 2. Native to china Transported to united states in infested packing material
- 3. Killed 20 million trees in Michigan , Ohio, 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