The New York State DEC is tracking a threat to beech trees that, to date, has been identified in 35 counties in the state. The DEC says Beech Leaf Disease (BLD), which affects all species of beech trees, has been confirmed in 14 counties so far in 2022, and more are likely to be identified. The agency began tracking BLD in 2018 after it was confirmed in Chautauqua County.
DEC Commissioner Basil Seggos says, "Many American beech trees are already heavily impacted by beech bark disease, but Beech Leaf Disease appears to be an even bigger threat. The decline of beech in New York could have far-reaching consequences, including significant changes to the composition of our northern hardwood forests and the loss of a valuable food source for wildlife. Beech Leaf Disease affects all beech, so the impacts would also be felt in our urban forests where ornamental beech trees, including the popular copper beech cultivar, are widely used for landscaping and street trees."
Much is still unknown about BLD, including how it spreads, but it can kill mature beech trees in 6-10 years and saplings in as little as two years. There is no known treatment for infected trees.
The DEC is asking the public to submit reports through NYimapInvasives if they encounter a beech tree showing signs of BLD, especially for counties where BLD has not yet been confirmed. The main symptom to look for on beech foliage is darkened striping between the veins, which is best seen when looking up through the canopy. Leaves with severe symptoms can be heavily banded and crinkled, with a thickened leathery texture.
Images by the New York State Department of Environmental Conservation
