A number of internet sources with information about integrated pest management are available. The list provided here contains links to some of the more useful IPM links. Some of the sites also have information about pesticides. Cooperative Agriculture Pest Survey and National Agricultural Pest Information System have Pest and Biocontrol Information for selected weed species including diffuse knapweed, purple loosestrife, spotted knapweed, leafy spurge, small broomrape, tropical soda apple, and witchweed.
Information includes fact sheets, distribution maps, and releases of biocontrol agents.
Colorado State University component of the National Integrated Pest Management Network. A Guide to Natural Enemies in North America. Florida Cooperative Extension Service provides publications on beneficial insects, insect control, aquatic weeds, nematode control, weed guide and other related topics. Integrated Pest Mangagement Information System provided by the Ministry of Environment, Lands and Parks, British Columbia, Canada. Topics include identification, monitoring and prevention of pests, using least-toxic controls, biological controls, pesticide safety and other pest management related subjects.