Check for Mourning Cloak Butterfly larvae
Mourning Cloak Butterfly larvae may be present on Aspen, Willow, Elm, and Poplar trees. Usually no need to treat.
The 2026 Cultivate & Cook workshop series starts January 15th! Register here
Plant Clinic
Mourning Cloak Butterfly larvae may be present on Aspen, Willow, Elm, and Poplar trees. Usually no need to treat.