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State ag outreach briefs Pine County commissioners on spongy moth and emerald ash borer management for 2025
Summary
Minnesota Department of Agriculture staff outlined proposed 2025 mating‑disruption treatment for spongy moth in the Nemadji State Forest area of Pine County and summarized the state’s emerald ash borer quarantine and local management options.
Jennifer Berlieton, outreach coordinator in the Minnesota Department of Agriculture’s Plant Protection Division, told the Pine County Board of Commissioners that the department proposes mating‑disruption treatment for an estimated 4,608 acres in the Nemadji State Forest in 2025 to limit spongy moth spread.
Berlieton described the insect and its life cycle to the board, saying the caterpillar stage causes damage and that “each caterpillar consumes about a square foot of leaves per day.” She explained that proposed aerial mating‑disruption uses an EPA‑certified synthetic pheromone product (SPLAT‑GM) that is applied by aircraft and is intended to prevent males from locating females and reduce reproduction.
The department said it will notify residents in proposed treatment…
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