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Select Board approves targeted ProcellaCore treatment for two milfoil hotspots after debate

Wolfeboro Board of Selectmen · March 19, 2026
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Summary

After reviewing DES guidance and hearing public and expert comment, the board approved targeted ProcellaCore applications in two identified areas of Back Bay/Crescent Lake, with one member opposed; the milfoil committee and DES will oversee treatment scheduling and monitoring.

The Wolfeboro Select Board voted March 18 to allow targeted application of ProcellaCore in two milfoil-affected hotspots identified by the milfoil committee and New Hampshire DES. The board approved the action after committee presentations, scientific questions from the public, and a discussion of alternatives including continued hand-pulling.

Milfoil committee representatives told the board they prefer hand-pulling when feasible but that DES had recommended treating two specific areas this season because divers and volunteers had been unable to control regrowth. The committee emphasized that ProcellaCore is different from older chemicals and noted DES oversight and permit requirements.

"We don't go out of our way to treat," the committee representative said, "We only do a chemical treatment when there's no other alternative." Several residents pressed for more data about long-term ecological effects, PFAS and possible restrictions after treatment; committee and DES representatives responded that current approvals allow limited use with short re-entry restrictions and monitoring.

Motion: A board member moved to permit ProcellaCore use in the two areas recommended by the milfoil committee and DES; the motion was seconded and passed, with one board member opposing the vote on environmental or stewardship grounds.

What’s next: The committee and DES will coordinate timing and monitoring. The board asked staff to circulate DES documentation and treatment plans to the public and to report back after surveys in spring.