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When trees look like telephone poles, they are either planted too deeply or mulched too deeply. Either way, it is not good for the tree! Photo: Sandy Feather, Penn State
Mulch Volcanoes Are Erupting Everywhere! - News News
Extension educators, arborists, and other knowledgeable horticulturists have railed against the prevalence of mulch volcanoes for decades. So why do we still see so much mulch piled around the trunks of trees? More
Overall picture of white oak impacted by cynipid wasp galls. Photo: Sandy Feather, Penn State
Cynipid Wasp Galls: Making A Mess of White Oaks - News News
The Extension office received a sample of damaged white oak leaves from the North Hills of Pittsburgh. Given the amount of rain we have had all year, anthracnose was a possible suspect. More
Plant infested with boxwood leaminer. Photo: Sandy Feather, Penn State
It’s Spring, and Soon the Boxwoods Will Sing - News News
Many years ago, a homeowner called our office with a question about why her boxwoods were making noise. More