A tree being injected with a garlic solution
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Ash dieback: How to fight diseases in trees

Could a tree injection help fight ash dieback and other tree diseases infecting our forests?

At a trial site in Northamptonshire a prototype is being tested - a fungicide, derived from garlic, is injected directly into a tree and travels in the sap system to target every area.

While a blanket use is impractical and expensive - it could potentially help save special historic trees, or trees with sentimental value.

The BBC's Claire Marshall takes a closer look at how you go about injecting a tree.

Go to next video: Ash disease confirmed in Cheshire