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

ARS/USDA Research Programs - Site developed by the ARS/USDA and describes the National Research Programs of the ARS/USDA.

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.

Cleary Chemical Corporation - Site developed by the Cleary Chemical Corporation and describes their agricultural chemical products.

Crompton Corporation -Site developed by Crompton Corporation 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.

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

FMC Corporation - Site developed by FMC Corporation and describes their agricultural products.

Griffin LLC / DuPont Crop Protection - Site developed by DuPont Corporation and describes their agricultural chemical products.

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

Hort on the Internet Weeds - Site was developed at N.C. State University and not only has specific information on weed control but also links to other sites.

Interregional Research Project #4 - Site developed by state and ARS/USDA researchers to assist in registering pesticides for minor food-use and ornamental crops.

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

Monsanto Company - Site developed by Monsanto Company and describes their agricultural chemical products and services

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

MSDS Sheets - A commercial site to locate chemical MSDS sheets.

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

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

Pesticides - Site developed by North Carolina State University and covers all aspects of disease, insect, plant growth regulators, and weed control of floricultural and other crops.

Pesticide-herbicide information - A commercial site covering almost all aspects of pesticide usage.

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

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

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

Scotts Company - Site developed by The Scotts Company and describes their agricultural chemical products.

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 at 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.