A new study from Holden Forests & Gardens and a team at USDA Agricultural Research Service confirms that beech leaf disease—a fast-spreading disease already devastating American beech across eas ...

CONCORD, N.H. — Ian Halm was walking in the Hubbard Brook Experimental Forest in North Woodstock, N.H., last week when he encountered an unwelcome sight: leaves from a beech tree with a few dark ...

Brianna Shepherd, research specialist at Holden Forests & Gardens, measures the diameter of an American beech tree as part of a long-term study on the impacts of beech leaf disease. First observed ...

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 ...