Backyard Farmer Backyard Farmer: Tree Planting and Diseases Special | 56m 58s | How to plant a tree with Jeff Culbertson and Loren Giesler talks about what to do with cankers on trees.

Research suggests new generation of young ash trees showing greater resistance to ash dieback fungus than adult trees.

British woodlands appear to be evolving resistance to the invasive fungus causing the devastating tree disease ash dieback, scientists have said. Researchers from the Royal Botanic Gardens, Kew, and ...