First introduced to New England by way of Nova Scotia, this defoliating pest has troubled coastal
Massachusetts while making it’s way north to Maine and south to Connecticut. Targeting deciduous plants, most vulnerable are Maples, Oaks, Basswood, Ash, White Elm, Crabapple, Apple and Blueberry. To make matters worse, the winter moth may drop from your trees into the plant beds and feed on your perennials (oh, the joy!).
Emerging in late Fall, the male and female species work together to lay hundreds of eggs on the stems of small host plants (the resulting egg “clusters” look like small tightly packed barrels) that will lay dormant through the winter. It’s important to note, there are no control products for the adult winter moth. However, there are important steps you can take in the right season.
Winter Moth Management Solutiions
|Life Phase||Season||Control Options|
|CONTROL: Egg||Late Fall / Winter||A dormant oil spray can be applied to suffocate the eggs.Product Suggestion: Bonide All Seasons OilBonide Caterpillar Killer|
|CONTROL: Newly hatched caterpillars||Late March / Early April||Bacillus thuringiensis or BT is a very safe and effective way to control all caterpillars.Product Suggestion: Bonide Thuricide (BT)|
|CONTROL: Feeding caterpillars||Late May / Early June||BT can still be applied only if not applied earlierr. Spinosad, Sevinand Neem are also effective.Product Suggestion: Captain Jack’s DEADBUG Brew®,|
If you are unsure about any of these control products as they pertain to your specific region or plant selection, contact your local Garden Center expert for additional details.