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For the Bradford pear, its long reign as the most trouble-free tree may have come to an end.
Cedar-apple rust, a fungal disease caused by Gymnosporangium juniperi-virginianae, is a serious and disfiguring disease of ornamental and fruit apples.
Apple scab, caused by the fungus Venturia inaequalis, is one of the most serious and disfiguring diseases of ornamental and fruit apples.
Bats’ roosting habits during hibernation could affect their susceptibility to a fatal fungal disease, according to a new U.S. study.
Dutch Elm Disease is 99 percent fatal to the American elm tree.
Being exposed to more parasite species could protect organisms from certain diseases, with more benign pathogens outcompeting virulent ones, a new U.S. study suggests.