Association of Fish and Wildlife Agencies.
Provides lists of sites for governmental members (U.S. state and territorial fish and wildlife agencies), North American members, affiliate members, and contributing members.
North American Native Plant Society.
Local Native Plant Societies are often your best source of information about plants native to your area.
Note: Provides information for State and Canadian Provinces.
Oregon State University. National Pesticide Information Center (NPIC).
Through its county agents, the Cooperative Extension Service gives individuals access to the resources at land-grant universities across the nation. These universities are centers for research in many subjects, including entomology (the study of insects) and agriculture. Each county within the United States has an Extension office, which is staffed with agents who work closely with university-based Extension specialists to deliver answers to your questions about gardening, agriculture, and pest control.
The Nature Conservancy works across state borders to preserve natural areas throughout the United States. And, the Conservancy is the leading conservation organization working around the world to protect ecologically important lands and waters for nature and people.