Committee hears data on wildlife exposures, tables bill to restrict rodenticide bait use

The Joint Standing Committee on Agriculture, Conservation and Forestry considered LD 356, a proposal that would direct the Board of Pesticides Control to study and possibly restrict the use of rodenticidal baits, particularly in residential settings and near wildlife habitat.

Alex Peacock, Director of the Maine Board of Pesticides Control, told the committee the board had begun a preliminary review of incident data and scientific studies on secondary rodenticide exposure. The director cited regional findings (a northeastern carcass sampling dataset and avian necropsy studies) showing rodenticide residues in wildlife: in one multi‑state sample set as many as 53 percent of sampled animals in Maine had at least one rodenticide detected; in other regional studies a high percentage of raptors tested showed rodenticide residues though not all detections were at levels associated with confirmed toxicosis.

Committee members and the director discussed practical tradeoffs. Board testimony emphasized that licensed applicators follow label and rule requirements (bait boxes with lockable access and integrated pest‑management measures); the board said restricting outdoor use to licensed applicators could reduce misuse. Members asked about alternative approaches, enforcement and how commercial food service and processing sites — which often require pest control as part of food‑safety certification — would be treated.

After extended questioning and discussion of labeling, product packaging changes and the available incident data, the committee voted unanimously to table LD 356 to allow further review. Several members indicated they wanted additional incident data, a review of labeling/packaging changes already implemented by EPA and an analysis of whether restricting outdoor rodenticide use to licensed applicators would reduce wildlife and domestic‑animal exposures without causing public‑health or food‑safety problems.

Why it matters: The bill addresses the intersection of pesticide regulation, wildlife conservation and household pet safety. The board’s preliminary data and multi‑state studies raised concerns about rodenticide residues in wildlife tissue, prompting committee members to seek more complete evidence and rule options before advancing statutory changes.

Committee direction: The committee asked the Board of Pesticides Control to gather additional state and regional data on rodenticide incidents, clarify labeling and packaging changes since the 2010s, and analyze options (including restrictions on outdoor use to certified applicators and indoor‑only rules) for potential future rulemaking or statutory proposals.