Winter Moth Caterpillar

The winter moth (Operophtera brumata) emerges in late fall and can be active until January. The female winter moth is gray and does not fly. It deposits small egg clusters on tree branches, crevices and trunks.  The male species is light brown and has wings; often times they can be seen flying at night. Winter moths have destroyed trees harvests from Maine all the way south to Long Island.

The Issue

Winter moth larvae hatch in early spring and immediately begin devouring leaves and fruit. The larvae feed on the newly swelling buds and fruit of their host trees. Depending on the tree type, species and health, defoliation can severely stress a tree to the point of dying if not properly maintained.

Signs of Winter Moth

  • In early spring, inchworms may be seen inside leaf clusters and buds during the day; at night they can be seen on the outside of leaves
  • Wingless moths on tree trunks October – January
  • Devastated flower buds
  • Early dropping of petals from fruit trees

The Solution

Contact Lynch Plant Healthcare so we can schedule a free inspection of your property and provide proactive winter month treatments.  These pests, both male and female, can harm your property so do not wait until it is too late.

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