KINGSFORD — The fourth-annual Invasive Species Trade-Up Days event is returning this May with new drop-off locations.

The event kicked off Saturday at the Wild Rivers Interpretive Center grand re-opening in Florence, Wis.

Other drop-off locations, dates, and times are —

–Dickinson Conservation District, Kingsford: 8 a.m. to 4 p.m. today through Friday and 8 a.m. to noon Saturday.

— Marinette County Land Information Department, Marinette, Wis.: 8 a.m. to 4 p.m. today through Thursday.

— Marinette County Fairgrounds, Wausaukee, Wis.: 8 to 11 a.m. Wednesday.

— Forest County Courthouse, Crandon, Wis.: 8 a.m. to 4 p.m. May 13-16.

— Menominee Conservation District, Menominee: 8 a.m. to 4 p.m. Thursday, May 16.

Trade-Up Days are a chance for landowners to remove an invasive species from their property, such as Japanese barberry, and exchange the plant for a monetary voucher. Each voucher is worth $5, and you can receive up to $50 if you bring in 10 or more invasive species.

“Vouchers are redeemable at participating greenhouses and plant sales for the purchase of a native plant replacement. Customers are responsible for any price difference. This year, we have an exciting list of native plant sellers,” said Katherine Mentel, WRISC project manager.

They include:

— Flowerland Greenhouse;

— Chenier’s Greenhouse;

— Danielson’s Greenhouse and Floral;

— Dickinson Conservation District Native Plant Sale;

— Spread Eagle Garden Center;

— Penny’s Plants and Pots;

— Northern Lights Master Gardeners Spring Plant Sale;

— Hanson’s Garden Village.

For more details, go to the event’s page at www.wrisc.org/events. The public is encouraged to pre-register, but it is not required.

The Wild Rivers Invasive Species Coalition, a multi-partner organization representing five counties in two states, is dedicated to managing invasive species on our lands and waters through cooperation, education, prevention, and control.

For more information, contact Mentel at wrisc.pm@gmail.com or 906-774-1550, ext. 104.