Verticillium Wilt

Identification

  • On maples and other broadleaf trees.
  • Branches die.
  • Wood has dark green to dark brown streaks or mottled areas.

Control

  • Chemical controls are not effective.
  • Remove the tree or parts of the tree as they die.
  • DO NOT use chips made from branches or trees killed by Verticillium wilt because of the high risk of spreading the fungal pathogen through the chips.
  • Plant trees known to be resistant.
  • Improve tree health by mulching and watering about 1 inch per week. Avoid overwatering.