John C. Fech

About the Author John C. Fech

John C. Fech is an ISA-certified arborist, a PNW-ISA certified tree risk assessor at the University of Nebraska-Lincoln and a frequent contributor. You can reach him at

Tree Health

Leaf-Feeding Insects

Determining what’s responsible for the demise or decline of your customer’s favorite tree can be difficult, especially when the causal agent is not readily visible. …