Fire blight infects ornamental fruit trees such as this callery pear, a popular landscape tree. Symptoms include cankers on branches, wilted shoots and blacked leaves, which give trees a “scorched” ...

In the early 20th century, a blight fungus wiped out most of the 4 billion American chestnut trees on the eastern seaboard. The loss was... Blight destroyed the American chestnut tree. Can ...