MN Landscape Arboretum database – Anderson Horticultural Library Plant Information – Collection of Databases of interest to gardening and plant enthusiasts as well as botanists, horticulturalists and plant Scholars. Where to buy information http://plantinfo.umn.edu/
Forestry Images – is a joint project of The Bugwood Network and USDA Forest Service. The University of Georgia – Warnell School of Forestry and Natural Resources and College of Agricultural and Environmental Sciences – Dept. of Entomology- hundreds of free images http://www.forestryimages.org/
The National Pesticide Information Center -Run by the Environmental Protection Agency and Oregon State University. Provides objective, science-based information about pesticides and pesticide-related topics http://npic.orst.edu/
Pesticide Action Network Pesticide Database – Run by a nonprofit organization dedicated to reducing the use of Pesticides sponsored by the Environmental Protection Agency. One-stop location for current toxicity and regulatory information for pesticides. http://www.pesticideinfo.org
Extension Toxicology Dept – Extoxnet – Objective, science-based information about pesticides – written for the non-expert. From the U of California Davis, Oregon State U, Cornell, Michigan State U, and the U of Idaho. http://extoxnet.orst.edu/
Leafsnap – Leafsnap is an electronic field guide for tree and plant species in New York City and Washington, DC.From Columbia University, the University of Maryland, and the Smithsonian Institute. http://leafsnap.com/
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