U Mass has fact sheets including ones on winter moth that include treatment at different times in the life cycle and different levels of benign-ness vs. toxicity. Less toxic options range from physical barriers to dormant oil spray (too late for that this year as it is sprayed when the moth and tree are dormant) to bacteria that only infect caterpillars (Bt).

https://ag.umass.edu/fact-sheets/winter-moth-identification-management

https://ag.umass.edu/fact-sheets/winter-moth-overview

There are also a fair number of folks on the New England forum who deal with this.

Hi, I'm in Mass too. Last year they were fairly bad in my yard. Several small tree/shrubs, which are susceptible to caterpillar damage any way, such as crabapples, Corylus americana, purple sand cherry were badly defoliated. Also lots on the Pin Oak above the deck, because there was frass all over the deck.

This year, I'm thinking they might not be as bad as last? This is because I didn't see many of them flying around in late winter/early Spring. But I will have the BT at the ready.

As my trees leaf out I'm noticing the leaves are all chewed and black but I don't see any bugs . This past winter finished off a few trees and plants that were hanging on by a thread. We need a day of slow rain.

Also in MA,

Terri