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, ...

The melon (or cotton) aphid, Aphis gossypii, is distributed throughout most of the world. It has been reported to feed on 220 different crops, including many important vegetables (tomatoes, potatoes, cucurbits) and ornamentals ...

Silver scurf, caused by the fungus Helminthosporium solani, is a common disease of potato and is present in all major production areas in the United States. The incidence and severity of silver scurf in New York, and its ...

The stalk borer is a native American insect which was mentioned as a pest in Massachusetts and Pennsylvania prior to 1852 when it was first described as a species. The stalk borer belongs to the large group of noctuid or ...

The green peach aphid (GPA) is distributed worldwide and has a host range of over 400 species of plants. In the United States, green peach aphid is a serious pest of vegetables and potatoes. Economic damage results from ...

Potato scab is a common tuber disease that occurs throughout the potato growing regions of the world. Although scab does not usually affect total yields, significant economic losses result from reduced marketability of the ...

Potatoes are a vegetatively propagated crop, and many disease organisms including several viruses and a viroid are disseminated in tubers. The important role that tubers play in virus spread is recognized by the strict ...

The potato stem borer was first reported as an economic pest in the United States in 1975. A native of Europe, Siberia, and Japan, it was accidentally introduced into the maritime provinces of Canada before 1908. The insect ...

Late blight of potatoes and tomatoes, the disease that was responsible for the Irish potato famine in the mid-nineteenth century, is caused by the fungus-like oomycete pathogen Phytophthora infestans. It can infect and ...

Flea beetles are common pests and frequently do serious damage to vegetable crops. Excessive feeding damage by flea beetles can stress and kill young plants. On maturing crops, feeding may scar leaves or fruit, resulting ...