But he said other interventions would be needed to give ash trees a helping hand, such as protecting trees from grazing deer ...

DNA sequencing shows young trees are more likely to have gene variants that confer partial resistance to a fungus that has ...

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

Vintage Clip Art and Illustrations | Oak Tree "Old engraving of an oak tree, isolated on white. Scanned at 600 DPI with very high resolution. Published in Systematischer Bilder-Atlas zum Conversations ...