Field Crop Diseases
Information and Management for Illinois
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College of Agricultural, Consumer and Environmental Sciences
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Alfalfa Diseases in Illinois

Diseases of alfalfa result from the interactions between susceptible alfalfa cultivars, pathogens, a conducive environment, and occasionally from improper crop management practices. Alfalfa diseases can reduce yields, reduce forage quality, thin or destroy stands, decrease stand persistence, and increase susceptibility to winter kill and other diseases and environmental stresses. The first step in managing alfalfa diseases is prevention through proper site selection and field management practices. The second critical step for many important diseases is selection of disease resistant alfalfa cultivars adapted for the area they will be planted. This site summarize symptoms, occurrence, and management options for important alfalfa diseases in the Midwestern U.S.

Note: This site is under construction and materials will continue to be added, so please check back periodically for new information.

Root Diseases Leaf Diseases Stem & Crown Diseases

Links to other sources of information on Alfalfa Diseases

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