University of Illinois
University of Illinois: Integrated Pest Management
Allows you to search for many differnt issues concerning Integrated Pest Management. Also allows you to link to related sites.
University of Minnesota
University of Minnisota: Radcliffe's Ipm World Textbook
This is a site designed and used by professors to teach integrated pest management. A part of the National IPM network. Gives great photos and countless suggestions.
Cornell University
Cornell University: A Guide to Natural Enemies in North America
In-depth info on four natural enemies: parasitoids, predators, pathogens, and weed feeders. Great identification of target insects and plants.
McGill University
Mc Gill U.: Integrated Management of Apple Pests
Site describes rusts(which are a type of fungus)on apple trees, discusses the disease and how to treat it.