Diseases affecting this crop.
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- Alfalfa Plant Diseases and Damage Photographs of plants infected by various pathogens and pests, with links to articles on integrated crop management.
- Alfalfa Leaf Diseases Photographs and information on a number of diseases that affect this crop.
- Alfalfa Leaf Spot, Pseudopeziza medicaginis Photograph of an affected leaf.
- Fungal Diseases of Alfalfa An identification guide to the fungal diseases that may infect this crop, with many photographs, brief descriptions of the symptoms and suggested management strategies.
- Alfalfa Insects: Integrated Crop Management Photographs and information to help in identification of the many insects to be found in first-cutting alfalfa, both friend and foe.
- Blue Alfalfa Aphid and Pea Aphid Both these aphids attack alfalfa and can cause damage. Description, photographs and information on management, monitoring, biological and chemical controls.
- Spotted Alfalfa Aphid Photographs and information on the damage done by this insect, its description, life history and biological and chemical controls.
- Alfalfa Weevil Information on this important insect pest, Hypera postica, its life history, crop management practices, biological and chemical control, not forgetting the protection of pollinating insects.
- Aphids in Alfalfa Information on the species that affect alfalfa, their management and control, and the protection of pollinating insects, and photographs of some beneficial insects useful for biological control.
- Alfalfa Disease Management Provides information on disease identification, control, field monitoring, scouting and resistant varieties.