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AshTag, initially launched in a storm of media coverage in October 2012, is an app that with your help will help scientists understand how ash dieback disease spreads and identify potentially tolerant trees. The project was originally created by the University of East Anglia's Adapt Low Carbon Group. It is now run by environmental charity the Sylva Foundation, and forms part of a major project to find and breed a new generation of healthy ash trees called the Living Ash Project. Read more at:

With this app, you can help us AshTag the UK's ash trees! We've also produced a smart, fully recyclable tagging pack that will enable you to physically tag any ash tree, diseased or otherwise, with a numbered aluminium AshTag and then geo-tag it to become the 'steward' of that tree. AshTag packs may be available (limited supplies) at

You can track the progress of your trees over time as you and others submit photos of them. You can also use the live map of all tagged trees to go 'AshTag hunting', and see how many tagged trees you can find and photograph.

The photo gallery that users will create for each tagged ash tree will help scientists to identify how the disease progresses and, crucially, the characteristics of trees which don't get the disease and appear to have some tolerance to the disease.

Have fun AshTagging!