09/04/2026
Emerald Ash Borer in SD
EAB was first detected in Michigan in 2002. Since then it has spread across the Midwest and now into South Dakota. It was first found in Sioux Falls in 2018 and spread in the SE part of the state. From there it has moved to Brookings County (2024), Codington and Grant County (2025) and most recently, the Fargo Metro Area and Bismark, ND (2026).
https://www.aphis.usda.gov/plant-pests-diseases/eab/eab-infestation-map