If you have trees in your home garden, then you likely have noticed some funny-looking growths on their bark that typically ...

I often receive calls from concerned individuals about gray, fuzzy growths appearing on plants that seem to be causing harm. The culprit that raises the alarm is ...

While walking around, I am seeing little pieces of lichens on the ground and street. With the recent snow and rains, trees ...

According to the U.S. Forest Service, there are about 3,600 species of lichens in North America that have been discovered. The fungus provides a structure for lichen to anchor itself to trees and ...

The Cooperative Extension Plant Clinic can provide information on scale insect control, urban tree care, and other horticultural problems.