Thousand Cankers Disease and Black Walnut Decline in Western Pennsylvania: What to Watch For
Key Takeaways Black walnut (Juglans nigra) is a native hardwood woven into the ecology and character of Western Pennsylvania. Mature specimens are found throughout Allegheny County, Pennsylvania in residential backyards, along property lines, on wooded lots, and in the riparian corridors of the region’s river valleys. They provide dense shade, valuable timber, wildlife habitat, and […]
