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Ash tree species in North America are under mortal threat from the Emerald Ash Borer (EAB), now in 35 states and five Canadian provinces.
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.
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.
The Plants for Planting Manual provides the background, procedures, and reference tables for regulating imported material of plants and vegetative parts that are for or capable of propagation, including buds, bulbs, corms, cuttings, layers, pollen, scio