Agricultural Research Service – Joint site for Departments in Land-Grant Universities and the U.S. Department of Agriculture – Agricultural Research Service (USDA-ARS). A general topics site.

American Nurseryman Publishing Company – Site developed by the American Nurseryman Publishing Company and provides an extensive listing of books and software related to plants.

Arvesta Corporation – Site developed by Arvesta Corporation and describes their agricultural chemical products.

BASF Specialty Products Department – Site developed by BASF Corporation and describes their agricultural chemical products.

Bayer Crop Science – Site developed by Bayer Crop Science and describes their agricultural chemical products.

Biological Control of Weeds – Developed by Texas A&M University, site has an overview and the latest news on identification and management of tough Texas weeds with biological control.

California Department of Pesticide Regulation – Site developed by the California Department of Agriculture and covers all aspects of pesticide usage in California.

Chemtura -Site developed by Chemtura and describes their wide range of products including agricultural chemicals.

Crop Data Management Systems – Site developed by Crop Data Management Systems, Inc. and describes agricultural chemicals, MSDS sheets and other services.

Dow AgroSciences – Site developed by Dow AgroSciences and describes their agricultural chemical products.

Everris – Site developed by Everris USA and describes their agricultural chemical products.

Fine Agrochemicals Ltd. – Site developed by Fine Agrochemicals Ltd. and describes their agricultural chemicals.

Gowan Company – Site developed by Gowan Company and describes their fungicides, insecticides, herbicides and other products and services.

Integrated Weed Management – An Introductory Manual – Site was developed scientists in Canada and is an excellent source for weed management of field-grown crops.

Monterey Lawn and Garden Products – Site developed by Monterey Lawn and Garden Products and describes their agricultural chemical and other products.

NC AgChem Table of Contents – Site developed by NC State University and covers all aspects of pest management and control.

NuFarm – Site developed by NuFarm and describes their agricultural chemical products.

Olympic Horticultural Products – Site developed by Olympic Horticultural Products and describes their agricultural chemicals and services.

Pacific Northwest Weed Control Handbook – Site developed by Oregon State University covering all aspects of weed control in the Pacific Northwest.

Plant Management Network – A fee based program for crop production management including pests.

Purdue University Floriculture Extension – Developed by Purdue University. Site includes information on many floricultural crops. A comprehensive linkage site.

SePRO Corporation – Site developed by SePRO Corporation and describes their agricultural chemical products.

Syngenta Professional Products – Site developed by Syngenta Professional Products and describes their agricultural chemical products.

UC Weed Research and Information Center – Site developed by the University of California, Davis and covers their entire weed science program and specific weed control information.

University of California Pest Management Project – contains information on all aspects on management of diseases, insects, and weeds.

Valent Corporation – Site developed by The Valent Corporation and describes their agricultural chemical products.

Weed control in Nurseries and Landscapes – Site was developed by Pennsylvania State University and covers all areas of weed control in nurseries and landscapes.

Wiley Books – A commercial site developed by John Wiley and Sons and describes their for-sale books on many aspects of Agriculture including floriculture.