EAB Olmsted County



The Minnesota Department of Agriculture (MDA) Tuesday confirmed an emerald ash borer (EAB) infestation in Olmsted County near the interchange of Interstate 90 and U.S. Highway 63.

The infested trees are approximately 45 miles away from the nearest EAB find in Winona County.

Because of this find, Olmsted County will join Hennepin, Houston, Ramsey and Winona counties in a state and federal quarantine. The quarantine is in place to help prevent EAB from spreading outside a known infested area into new areas. It is designed to limit the movement of any items that may be infested with EAB, including ash trees and ash tree limbs, as well as all hardwood firewood.

EAB was first discovered in Minnesota in 2009. The last time a county was added to the quarantine was in 2011 when an infestation was discovered in Great River Bluffs State Park in Winona County.
 

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