Dept. of Resources: Protect your valuable ash trees against emerald ash borer

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Stay informed and be on the lookout for emerald ash borer. / Photo Credit: Wisconsin Department of Agriculture, Trade and Consumer Protection
MADISON, Wis. – The Wisconsin Department of Natural Resources (DNR) encourages property owners with healthy, valuable ash trees to treat them with insecticide this spring to protect against emerald ash borer. The pest is currently the most damaging threat to trees in Wisconsin, killing more than 99% of the ash trees it infests.
A common first sign of emerald ash borer infestation is woodpecker damage created when birds feed on emerald ash borer larvae b...

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