Alfalfa
Corn
- Corn Page--UW-Madison (Inlcudes links to Hybrid and Corn Trials, UW-Extension Publications, "WI Crop Manager Newsletter", "Agronomy Advice", and other excellent Wisconsin resources on Corn)
- The Corn Grower's Guidebook
- Corn Diseases/Pests
- Maize Genome Database
- National Corn Growers Association
Cranberries
- AgNIC American Cranberry(Includes marketing, production, harvesting, recipes, and a email question function)
- Cranberry Crop Management Newsletter
- Cranberry Agriculture in Maine
- UW-Madison Fruit Pathology (Includes images, disease profiles, and more)
- Wisconsin Cranberry School Proceedings
- Wisconsin State Cranberry Growers Association
Crop Diseases & Pests (See also specific crops)
- Biological Control: A Guide Cornell University Site
- Disease/Pest Alerting Services Click on Forecasts Sites and Alerting Services on the left menu bar.
- Descriptions of Plant Viruses (Association of Applied Biologists)
- Insect Diagnostic Lab (UW-Madison)
- Integrated Pest Management , Washington State's site.
- Integrated Crop & Pest Management Univ of Wisconsin
- The University of Idaho's Plant Viruses Online and Plant Disease Reporter
- Plant Pathology Internet Guide Pests, diseases and disorders listed by plant group.
- Tobacco Blue Mold
- UW-Vegetable Pathology
- University of California at Davis pest management guidelines for agricultural crops.
- Wisconsin ATCP Pest Bulletin
Forage
Fruit Crops
Genetic Engineering
(Link to seperate subject guide for genetic engineering.)
- Ag Biotech InfoNet
- Agricultural Biotechnology (USDA) U.S. Dept. of Agriculture's site covering frequently asked questions; laws and regulations, permitting and notification; research; trade; contacts; and other links.
- Crop Genetic Engineering (The University of Nebraska at Lincoln provides information on many aspects of agricultural biotechnology, organized in lesson format. )
- Field of Genes (discusses methods and issues surrounding transgenic crops.)
- Genetically Engineering Organisms (Public Issues Education Project)
- World Health Organization's Food safety site (Discusses human health aspects of biotech foods)
Invasive Plants
- National Invasive Species Information Center
- Weedometer
Created by Prof. Ed Luschei, Agronomy Department, UW-Madison, this tool is a speedometer-like graph that displays the emergence and flowering periods of nearly 70 species of weeds commonly found in Wisconsin. By simply scrolling down a menu, users can find a color-coordinated meter along with a picture of any certain weed ranging from bull thistle to yellow foxtail.
Potatoes
- Global Potato News
- The Idaho Potato Commission
- National Potato Council
- Potato Association of America
- Potato Information Exchange
- Potato Pests and Diseases
- Potato Diseases-Images (UC IPM Online)
- United States Potato Board
- Wisconsin Potato & Vegetable Grower's Association (Includes links to UW-Madison Researchers)
Small Grains
- BarleyWorld
- Barley Genetics Newsletter
- GrainGenes:a compilation of molecular and phenotypic information on wheat, barley, rye, triticale, and oats, supported by the USDA-ARS Plant Genome Research Program.
- Grain Marketing Plus.Com
- Kansas State Wheat Page
- Kansas Association of Wheat Growers
- National Association of Wheat Growers
- Oats Online
- Small Grains, the Internet source for small grain growers
- Small Grains Page (NDSU)
- Team Grains (UW-Extension)
- Univ. of WI Soybean and Small Grain Research
- UW Extension Grains Team
- U.S. Feed Grains Council (develops export markets for U.S. corn, grain sorghum, barley and their related products)
- Utah State Small Grains Research
- Wheat Genetics Resource Center
- Wheat Diseases and Pests: a guide for field identification
- Winter Cereal Production
Soybeans
- American Soybean Association
- SoyBase(SoyBase is part of the legume database project coordinated by Randy Shoemaker at Iowa State University and funded by the USDA-ARS Plant Genome Program. )
- Soybean Image Library
- Soybean Disease Atlas (Patrick D. Colyer, Editor. 2nd edition)
- Soybean Production and Management (Iowa State Univ.)
- Soybean Variety Trials
- Univ of Minnesota Extension Publications
- UW-Extension Soybean and Small Grain Research
- U.S. Soybean Diagnostic Guide
- UW-Madison Soybean Plant Health
- Wisconsin Soybean Association
Tomatoes
- Virtual Crops: Lycopersicon Esculentum:An Anatomy Atlas
Weather
- Forecasts Nationwide
- USDA's weekly weather and crop bulletin.
- Weather by state or region, including long-range predictions, and effects on various crops and livestock.