Cuttings from Ontario Elm trees that survived the Dutch Elm disease in the 1950s to 1970s are being bred by scientists at the University of Guelph, in hopes to reestablish healthy disease-resistant saplings.
Cuttings from Ontario Elm trees that survived the Dutch Elm disease in the 1950s to 1970s are being bred by scientists at the University of Guelph, in hopes to reestablish healthy disease-resistant saplings.