Penn State Extension

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Why are My Spruce Trees Dying?
Why are My Spruce Trees Dying? - Videos Videos

Why are My Spruce Trees Dying?

Kimberly Bohn, Ph.D.

7:09

Learn how to identify types of spruce trees, symptoms of two common fungal diseases, and what if any treatments are available. More
Photo by Mike Eckley
Backpack Sprayer Calibration for Woodland Applications - Articles Articles

Backpack Sprayer Calibration for Woodland Applications

David R. Jackson, Kimberly Bohn, Ph.D., Art Gover

This article covers calibrating a backpack sprayer to determine how much herbicide to add for band applications and spot treatments. More