The progressive spread of the Chestnut blight after it’s introduction into the American wilderness
A canker in the side of an American Chestnut tree.
A fully grown American Chestnut tree
One of Elena Fernandez’s surviving American Chestnut tree saplings. The cup is a mud-packing mechanism to suppress the blight from killing the sapling too soon.
Genetically engineered saplings in a Greenhouse and out in the field in Syracuse, NY.
Chestnut burs in their early development.