Forest & Shade Tree Pathology is a site created by Jim Worrall, a former professor at the College of Environmental Science and Forestry. The major focus of this resource is the study of tree diseases, "their causes...

Much of this Laboratory's current research is focused on Phytophthora ramorum, the causal agent of Sudden Oak Death. The site links to downloadable files for a collection of research publication and posters. The website...

This Web site from the Cornell Institute for Food, Agriculture, and Development contains a newly developed prototype of the "Global Crop Pest Identification and Information Services in Integrated Pest Management (IPM)."...

This Topic in Depth explores some of the diseases and other threats, such as gypsy moths, emerald ash borers, and Asian longhorned beetles that certain trees must contend with to remain healthy and vital.

A useful resource for amateur horticulturists from the University of Minnesota Extension Service, Yard and Garden Clinic. The focus here is on commonly used perennials, grasses, shrubs, and trees in the home garden and...