Report a tree pest or disease

If you think you have spotted a tree pest or disease of concern, and have double checked signs and symptoms on our pests and diseases pages, then report it as quickly as possible via Tree Alert.

Developed by the Forestry Commission, Tree Alert is an online reporting tool for forestry professionals and those with knowledge of trees and woods. Information about trees showing symptoms of pests or diseases can be recorded and submitted for further verification.

Tree concerns in Northern Ireland must be reported to Tree Check and not Tree Alert.