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Cryphonectria parasitica is a parasitic fungus of chestnut trees. This disease came to be known as chestnut blight. Naturally found in South East Asia, accidental introductions led to invasive populations of C. parasitica in North America and Europe. In the first half of the 20th century, the fungal disease had a devastating economic and social ...
Young tree in natural habitat American chestnut male (pollen) catkins. Castanea dentata is a rapidly-growing, large, deciduous hardwood eudicot tree. [20] Pre-blight sources give a maximum height of 100 feet (30 m), and a maximum circumference of 13 feet (4.0 m). [21]
The mission of The American Chestnut Foundation (TACF) is to restore the American chestnut tree to the forests of Eastern North America by breeding genetically diverse blight-resistant trees, evaluating various approaches to the management of chestnut pests and pathogens, and reintroducing the trees into the forest in an ecologically acceptable manner.
Struck by a blight identified in 1904, American chestnut trees are considered "functionally extinct." Now those that remain are facing a new disease.
The American chestnut tree used to grow throughout the eastern U.S., but was devastated by a blight in the early 20th century. Why an American chestnut tree in Centreville is the 'holy grail' for ...
The chestnut blight was introduced in the late 19th century with the Japanese chestnut and decimated the once-widespread American chestnut tree. [9] Native un-modified trees are killed from the ground up by the blight, and only the root system survives.
The American Chestnut Cooperators' Foundation ( ACCF) is a 501 (c) (3) non-profit, scientific, and educational foundation that was organized in 1986 and with the help of research and volunteers from Virginia Tech Universit y, is dedicated to restoring the American chestnut ( Castanea dentata) [1] to its former place in the United States Eastern ...
Dutch elm disease was spread by elm bark beetles, yet the tree mortality was caused by a pathogen. Chestnut blight is a fungus spread through wind dispersal and rain splatter; the blight traveled up to 50 miles in a year by natural means. Insect pests, once they reach the adult phase, have the ability to disperse by flight.