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Emerald Ash Borer Confirmed In Osceola County

January 20, 2023 Steve Schwaller

(Des Moines)– All but just three of Iowa’s 99-counties have confirmed cases of emerald ash borer. Monona, Osceola, and Woodbury counties in northwest Iowa are the latest to report cases.

E-A-B was discovered more than a decade ago, and has gradually spread across the state, killing ash trees.