The Emerald Ash Borer is native to Asia but was first discovered in the U.S. in 2002 around the Detroit area. Since then, it has killed over 25 million white and green ash trees in the Midwest. Iowa Gardening Magazine's Liz Gilman has more on this week's Gardening in the Zone.
Gardening in the Zone is a video broadcast developed and produced by Iowa State University Extension. Host Liz Gilman and guests provide viewers tips and ideas about gardening.http://www.extension.iastate.edu/gardening/
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