A scanning electron microscope reveals nematodes (highlighted in green) inside the spongy mesophyll of a European beech (Fagus sylvatica) leaf infected with beech leaf disease (BLD). Eggs are marked ...

Each summer, like clockwork, millions of beech trees throughout Europe sync up, tuning their reproductive physiology to one another. Within a matter of days, the trees produce all the seeds they’ll ...

European beech trees more than 1,500 kilometers apart all drop their fruit at the same time in a grand synchronization event now linked to the summer solstice. Each summer, like clockwork, millions of ...

In a Holden Arboretum greenhouse lined with rows of potted trees, researcher David Burke points to dark banding patterns on one leaf – a sign of a relatively new disease that is afflicting area beech ...

Climate change is making Swiss forests warmer and drier. The trees would have to adapt genetically to the rapidly changing climate to continue flourishing at their current growth location. Yet, they ...

An invasive tree disease first detected in Michigan over the summer has now been found in three southeast Michigan counties, state officials said. The Michigan Department of Natural Resources reports ...