Tree pests

Before you report a possible thousand cankers disease (TCD) find

To determine if you should report TCD, 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, move to the next question.

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

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 forest.health@mdc.mo.gov.