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Oak decline is a slow-acting disease complex that involves the interaction of biotic and abiotic factors such as climate, site quality and advancing tree age.
This video was created about plant diseases’ impact, primarily aimed at non-expert laypeople, and to draw attention to the importance of the CONNECTED Network in helping address these issues.
Interception of potential invasive species at ports-of-entry is essential for effective biosecurity
and biosurveillance programs. However, taxonomic assessment of the immature stages
This webinar was brought to you by the Natural Areas Association.
Presented by Sarah Wurzbacher, Forestry Extension Educator, Penn State University.
Ice or snow loads can cause branch breakage or failure of entire trees and shrubs. Branches or entire trees that fall in storms can impact homes, vehicles, power lines and block roads.
EAB has become more prevalent in the northeastern U.S.
- Many exotic plant pests and pathogens are unknown prior to their establishment, making prevention and management difficult.
The invasive hemlock woolly adelgid (HWA) has decimated hemlock stands across much of the eastern United States, and presents a significant threat to all eastern hemlock in Canada across Ontario, Quebec, New Brunswick, Nova Scotia, and Prince Edward Isl
Insect and disease infestations pose major threats to several North American forest tree species.
The American chestnut, whitebark pine, and several species of ash in the eastern United States are just a few of the North American tree species that have been functionally lost or are in jeopardy of being lost due to outbreaks of pathogens and insect p