- Plant Disease Central
http://pdc.unl.edu/
Detailed descriptions of crop diseases commonly occurring in the western corn belt. Crops covered include, corn, sorghum, wheat, soybean, dry bean, sugar beet. University of Nebraska- Lincoln.
- Zeamax Agriculture
http://www.zeamax.ca
Agricultural regulatory affairs, field research and market development consulting providing services to the crop protection and seed industries in Canada.
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