Randall G. Prostak, UMass Extension Weed Specialist;
Daniel H. Gillman, UMass Extension Plant Pathologist;
Robert D. Childs, UMass Extension Entomologist
Good identification of your pest problem is the first, key step to successful management! This photo guide has over 80 pages of clear color photographs for the most frequently encountered weed, insect, disease and nonpathogenic disorders of ornamental trees and shrubs in the Northeast. For bulk purchase (10 or more) discount inquiries, please contact Ellen Weeks at 413-545-2685.