The redbanded leafroller (RBLR) has been reported to feed on apple since the 1870s, but was not found to be an economic pest of commercial apples in northeastern United States until1918. It remained a minor pest until the ...

Perennial canker (also called Valsa canker, Cytospora canker, Leucostoma canker, and peach canker) is one of the most common and debilitating diseases of peach trees in the Northeast. It also occurs regularly on sweet ...

Phytophthora root and crown rots (sometimes called collar rot) are common and destructive diseases of fruit trees throughout the world. In New York, apple, cherry, peach, and apricot trees are usually attacked, whereas ...