Penn State Extension is presenting the free, live webinar, Pennsylvania Invasive Species: Beech Leaf Disease Nematodes on Friday, September 4, 2026 at 1:00PM. Beech Leaf Disease (BLD) is an emerging and destructive threat to native and ornamental beech trees across North America. This webinar examines the tiny but powerful culprit—Litylenchus crenatae mccannii, a foliar nematode responsible for the disease—and explains how it is identified and diagnosed, how it spreads within and between trees, and what current research reveals about its biology, transmission, and host interactions.

For more information and registration go to  https://extension.psu.edu/