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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Why Are My Maple Leaves Turning Black? Tar Spot in Pittsburgh

Why Are My Maple Leaves Turning Black? Tar Spot in Pittsburgh

If your maple leaves are turning black in Pittsburgh, the most common cause is tar spot, a fungal leaf disease that looks dramatic but is usually not a serious threat to the tree’s long-term health. It shows up as black, tar-like blotches on the leaves, and while it can make a tree look unhealthy and […]

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