Tree pests and diseases

Our trees and woods are less able to withstand the impacts of pests and diseases since they're already under great pressure from pollution, intensive land use, urban development and climate change. Many of these threats have entered from abroad as the growth in exotic plants has increased.

The loss of millions of trees present in the wider countryside, fields, hedgerows and on roadsides will have a catastrophic impact on our landscape and biodiversity. Ash dieback is the most well-known UK tree disease but there are many more. Find out what they are and how you can help.

Find out more about our key pests and diseases...