Keep on the lookout for emerald ash borer
Several counties quarantined
SPRINGFIELD — Jo Daviess is the latest county to fall victim to the emerald ash borer, a destructive pest responsible for killing millions of ash trees in North America. As it is the northwestern-most county in the state, EAB officially has spanned across the northern third of Illinois. EAB also was recently found in Whiteside County and confirmed this July.
The emerald ash borer is a small, metallic-green beetle native to Asia. Its larvae burrow into the bark of ash trees, causing the trees to starve and eventually die. Since the first detection of the pest near Detroit, Mich., in 2002, it has killed more than 25 million ash trees.
The beetle often is difficult to detect, especially in newly-infested trees. Signs of infestation include thinning and yellowing leaves, D-shaped holes in the bark of the trunk or branches and basal shoots. Anyone who suspects an ash tree has been infested should contact their county Extension office, their village forester or the Illinois Department of Agriculture.
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