Chlorophyll-depleted European beech (Fagus sylvatica) leaves stained with acid fuchsin reveal the presence of beech leaf disease (BLD)-causing nematodes (pink) in symptomatic samples (right), while ...

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 ...

In just a decade, this unusual disease has spread from Ohio across the Northeast. Scientists are testing treatments, but answers come slowly. Backlit leaves of an American beech tree show dark bands, ...

Beech Leaf Disease, caused by foliar nematodes, is devastating beech trees in Oakland Forest and other areas. A research study is underway to test treatments, including fungicide injections and tree ...

Beech leaf disease, caused by a type of microscopic worm, has spread rapidly across the eastern U.S. and parts of Canada since first detected in Ohio in 2012. The disease interferes with chlorophyll ...

Over the years Ohio trees have had a continuing list of problems. Oak wilt is currently affecting oak trees. Before that, there was the Emerald Ash Bore for ash trees and earlier there was Dutch Elm ...

In the early part of the 20th century, the American chestnut was ravaged by an invasive fungus that arrived from Asia. That fungus made the American chestnut functionally extinct, and although some ...