What Allegheny County’s Tree Preservation Ordinance Covers and When You Need a Permit

What Allegheny County’s Tree Preservation Ordinance Covers and When You Need a Permit

Key Takeaways Tree removal and pruning feel like private decisions made on private property and in many cases they are. But in Pittsburgh and across Allegheny County’s municipalities, meaningful regulations govern what you can and cannot do with trees. The most common mistake property owners make is assuming that a tree on or near their […]

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How Pittsburgh’s Acid Rain Legacy Affects Soil pH and Tree Health Decades Later

How Pittsburgh’s Acid Rain Legacy Affects Soil pH and Tree Health Decades Later

Key Takeaways Pittsburgh’s transformation from a steel and manufacturing center to a modern economy is one of the more remarkable urban stories of the past half-century. The rivers are cleaner. The air is measurably better. The hills that once carried industrial haze are now green and wooded. But soil doesn’t recover as visibly or as […]

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Thousand Cankers Disease and Black Walnut Decline in Western Pennsylvania: What to Watch For

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 […]

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