Tree pests

Before you report a possible TCD find

Ask yourself these questions.

Is my tree a walnut tree?

Determine if your tree is a walnut. If the answer to this question is YES, then go to the next question.

Does my walnut tree have any of the signs or symptoms?

Signs and symptoms of TCD. If your tree has any of the signs or symptoms of TCD then:

  • Fill out this online report.
  • Call the Missouri Department of Conservation toll-free at 1-866-716-9974.
  • Send photos if possible. Take photographs of the entire tree, a close-up of leaves, and any other symptoms. Email digital photos and contact information to