Spotted wing drosophila (SWD) is a vinegar or fruit fly of East Asian origin. Introduced into Hawaii in the 1980s, first discovered in California in 2008, by 2011 it had found its way into New York State (NY). Today, its ...

A relatively new exotic pest in North America, cherry bark tortrix was found in British Columbia in 1989, in Washington in 1991, spread to Oregon, and has now established itself as a pest of ornamental cherries in the ...

Cedar apple rust affects the foliage and fruit of apples (Malus domestica) and other members of the family Rosaceae (e.g. crabapple). This fact sheet describes the causal agent, the fungal pathogen, Gymnosporangium ...

Spotted wing Drosophila (SWD) is a vinegar or fruit fly of East Asian origin. It has been in Hawaii since the 1980s, but was first discovered in California in 2008. By 2010, it had made its way into Florida, Utah, the ...

Originally from Australia, the light brown apple moth can now be found in New Zealand, New Caledonia, Hawaii, the British Isles, and most recently, California. The light brown apple moth is a greater threat than many other ...

Apple scab, one of the most devastating fungal diseases of apple, occurs worldwide, wherever apples are grown. The fungal pathogen, Venturia inaequalis, can also infect crabapple, hawthorn, mountain-ash, firethorn, and loquat.

Bacterial canker of stone fruit occurs worldwide and is caused by Pseudomonas syringae for which distinct pathovars are known and associated with host range. In New York, the disease predominantly affects sweet cherry, ...

The spotted lanternfly is a planthopper native to China and Southeastern Asia. Discovered in Pennsylvania in 2014, the spotted lanternfly presents a threat throughout much of the United States. While its list of hosts is ...

Variegated golden tortrix is a leafroller native to Europe and Asia. Also known as apple leafroller or brown oak tortrix, variegated golden tortrix is able to feed on the buds, foliage, flowers, and fruit of many plants. ...

Increased global trade facilitates the movement of invasive pests like the false codling moth. Native to sub-Saharan Africa, false codling moth can be transported to the U.S. via cargo and passenger luggage—the transport ...