The pathogenic fungus Cryphonectria parasitica is a member of the Ascomycota. This necrotrophic fungus is native to East Asia and South East Asia and was introduced into Europe and North America in th
Chestnut blight
Chestnut blight affecting a young American chestnut
A chestnut tree that has been felled, with blight on its inner bark and trunk
Experimental trials by The American Chestnut Foundation at Tower Hill Botanic Garden in Massachusetts
The American chestnut is a large, fast-growing deciduous tree of the beech family native to eastern North America. As is true of all species in the genus Castanea, the American chestnut produces burre
Chestnut blight
…hypovirulence. CHV1 is one of at least two viral pathogens that weaken the fungus through hypovirulence and helps trees survive a blight infection. The American chestnut (Castanea dentata) and American chinquapin (Castanea pumila) are highly susceptible to chestnut blight. The European chestnut (Castanea sativa) is also…
A young chestnut tree in its natural habitat
American chestnut male (pollen) catkins