Signs to Watch For on Vermillion Ash Trees
Vermillion · Ash Tree Treatment · Step 2 of 5
Vermillion Fact Bank
County Clay County
EAB status not yet confirmed
Population ~11,700 (2024 estimate)
Every fact cited
Canopy thinning, D-shaped exit holes, bark splitting over S-shaped tunnels, and heavier woodpecker activity are the signs to know. Given Clay County’s border with quarantined Union County, it’s worth a slightly closer watch than in more distant parts of the state.
Frequently Asked
01
Should I check my ash tree more often because of the Union County border?
A seasonal check (spring and again in late summer) is reasonable for any SD ash owner; the border proximity is a reason to take early signs seriously rather than dismiss them, not a reason for constant monitoring.