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Beach leaf disease is a disease that impacts American beech and several other species of beech. It is caused by a nematode, Litylenchus crenatae ssp. mccannii. It damages leaf buds which leads to leaf loss, canopy thinning, and aborted buds.
A tree disease first spotted 9 years ago in Ohio is now a leading threat to one of eastern North America’s most important trees. The poorly understood malady, called beech leaf disease, is spreading rapidly and killing both mature American beeches and saplings, new research shows.
The disease kills and causes dieback of American beech trees in North America. Early signs of BLD include dark stripes or bands between lateral veins of leaves in the spring. BLD was first detected in the United States in Lake County, Ohio in 2012.
Beech leaf disease (BLD) was first discovered in 2012 from northeastern Ohio (Ewing et al. 2019). In 2019, the disease was detected in southwestern Connecticut (Marra and Lamondia 2020) and several nearby counties in New York State. Currently, BLD has become firmly established across Connecticut, Rhode Island and Massachusetts.
Beech Leaf Disease (BLD) poses a substantial threat to beech trees in the eastern United States, affecting all types of beech trees, including our native beech, Fagus grandifolia, and European beech trees, Fagus sylvatica.
Beech leaf disease (or BLD, since all the nasty forest pests and pathogens seem to get a three-letter abbreviation) is caused by a microscopic worm-like nematode, Litylenchus crenatae ssp. Mcannii, and potentially its associated fungi or bacteria. Beech leaf disease is believed to be native to Japan and was detected in Ohio in 2012.
BLD is a foliar disease affecting leaves of beech trees. BLD was first documented in 2012 after it was discovered affecting leaves of American Beech (Fagus grandifolia) trees in Lake County in northeastern Ohio. Since then, it has spread to nine states throughout the northeast, the mid-Atlantic, and the Canadian province of Ontario.
A new study led by a team of scientists from YSE found differences at the cellular level of leaves from infected Beech trees — variations that may account for tree mortality.
A mysterious disease is starting to kill American beeches, one of eastern North America's most important trees, and has spread rapidly from the Great Lakes to New England. But scientists disagree about what is causing the ailment, dubbed beech leaf disease.
Symptoms of beech leaf disease (BLD) are strongly associated with parasitic nematodes, or roundworms, that attack the tree’s buds and damage the leaves of American beech, greatly limiting trees’ ability to photosynthesize.