The tarnished plant bug is found throughout North America, but it is primarily a pest in temperate nondesert areas. It feeds on more than fifty economically important plants , including alfalfa , cotton, strawberries, ...

Sooty blotch and fly speck are the two most common “summer diseases” of apples in the Northeast; they are also problems on pears. Although caused by two different organisms, the diseases often occur together since both are ...

The European apple sawfly is an introduced pest that was first noted in North America infesting crabapples on Long Island (Farmingdale, N.Y.) and Vancouver Island (Victoria, B.C.) during 1939 and 1940, respectively. Since ...

The codling moth (CM) is a pest introduced from Eurasia. The larvae feed on the fruit of a wide range of host plants including apple, pear, quince, hawthorne, crabapple, and walnut. CM completes 1.5-3.5 generations annually, ...

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 ...

Mullein plant bug (MPB) and apple brown bug (ABB) are occasional pests of apple and pear in New York. Because they occur in the same place at the same time and cause the same kind of damage, they are collectively referred ...

The American plum borer (APB) is a cambium-feeding moth pest of fruit and ornamental trees. It is unusual because it belongs to the pyralid, rather than the sesiid (clearwing) family, which is more commonly associated with ...

The Comstock mealybug (CMB) was first reported in the United States in 1918 concurrently in New York and California, and has since spread to all coastal states and the Ohio and Mississippi River valleys. Its fruit hosts ...

Predatory mites can provide consistent biological control of pest mites such as the European red mite (Panonychus ulmi), (ERM), and two-spotted spider mite (Tetranuchus urticae), (TSSM). Pure or mixed populations of several ...