Nick is an extension plant pathologist in the Center for Agriculture, Food and the Environment, University of Massachusetts, Amherst. He directs the UMass Plant Diagnostic Laboratory and conducts applied research in urban forestry. His research focuses on wood-rotting fungal pathogens of trees in urban and suburban settings.
The UMass Plant Diagnostic Lab diagnoses plant material samples from homeowners, farmers, arborists, tree nurseries, greenhouse producers, landscape contractors, and turf managers among others. The lab's diagnostic reports identify the pests or fungus present and