A Technical Report from The Bartlett Tree Research Laboratories
The winter moth (Operophtera brumata) was introduced to North America from Europe. Winter moth has been noted as a pest for years in Eastern and Western Canada and the Pacific Northwest region of the United States. Since winter moth is an introduced pest, it has few natural parasites capable of suppressing populations. As a result, winter moth continues to spread and has become a serious pest in parts of New England, especially along coastal areas of Massachusetts.