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, ...

A brochure describing the Network for Environment and Weather Applications; what it does and how to subscribe.

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 ...

This guide for organic grape production is an outline of cultural and pest management practices and includes topics that have an impact on improving plant health and reducing pest problems. Updated for 2016.

This guide for organic raspberry and blackberry production is an outline of cultural and pest management practices and includes topics that have an impact on improving plant health and reducing pest problems. Updated for 2016.

Fire blight, caused by the bacterium Erwinia amylovora, is one of the most destructive diseases in apple and pear production. Fire blight can infect other members of the rose family including quince, juneberry, hawthorne, ...

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 ...

Powdery mildew occurs in all apple-producing regions worldwide, especially where warm, humid climate conditions prevail. Young expanding plant tissues are particularly susceptible to the disease. Therefore, powdery mildew ...

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 ...