Town of Wellesley, MA - Winter Moth Information

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Winter Moth Information

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In Wellesley and throughout eastern Massachusetts the winter moth caterpillar has been defoliating trees during the spring. Under the authority of the Natural Resources Commission and the guidelines of the Wellesley Integrated Pest Management Policy, the Department of Public Works will be selectively ground spraying town trees to control winter moth caterpillars that are harmfully defoliating trees. Trees will be treated with Conserve #SC, a spinosad based product, E.P.A. Reg.#62719-291. Based on weather conditions and caterpillar populations, applications will take place on April 19th thru April 28th and May 3rd thru May 12th, between the hours of 5 am and 10 am. All treated areas will be posted for 24 hours before and after applications. Maps delineating the town properties to be sprayed can be viewed at the DPW Park & Tree Conference Room located at 56 Woodlawn Avenue.


Winter Moth Caterpillar	Controlling Winter Moths