The Wisconsin Department of Agriculture, Trade and Consumer Protection is adding seven new southwestern counties to the state’s emerald ash borer quarantine list. EAB has been found in Columbia, Monroe and Grant Counties. Because they are now surrounded by EAB-infested counties, Richland, Iowa, Lafayette and Green Counties will also be quarantined.
The quarantine will be put in place temporarily by a Wisconsin emergency rule, until the U.S. Department of Agriculture completes the process to enact a federal quarantine.
DATCP recommends that property owners who have ash trees in quarantine counties keep a close watch for possible signs of EAB infestation:
- Thinning canopy, D-shaped holes in the bark, cracked bark, branches sprouting low on the trunk, and woodpeckers pulling at bark.
- Consider preventive treatments if your property is within 15 miles of a known infestation.
- Consider planting different species of trees that are not susceptible to EAB.
- Call a professional arborist, and visit emeraldashborer.wi.gov for detailed information.