Pests and Diseases Alfalfa Grassland, Hay and Forage Field Crops

Information on various diseases which may affect this crop with photographs of some, the life cycle of the causal agent, the symptoms and plant health management.

• Diseases of Alfalfa: Non-Infectious - Descriptions of physiological disorders, deficiencies, drought and frost alfalfa damage.
• Diseases of Alfalfa: Bacterial Wilt - Photographs and information on how to identify this alfalfa infection, caused pests and diseases by Corynebacterium insidiosum, and possible management alfalfa strategies.
• Alfalfa Weevil - The key to economical management of the alfalfa weevil is grassland, hay and forage combining crop management practices, biological control and the use of grassland, hay and forage insecticides only when weevil numbers are high enough to ensure grassland, hay and forage that yield benefits outweigh treatment costs.
• Alfalfa Leaf Spot, Pseudopeziza medicaginis - Photograph of an affected leaf.
• Fungal Diseases of Alfalfa - An identification guide to the fungal diseases that may infect pests and diseases this crop, with many photographs, brief descriptions of the symptoms pests and diseases and suggested management strategies.
• Diseases of Alfalfa - Information on various diseases which may affect this pests and diseases pests and diseases crop with photographs of some, the life cycle pests and diseases pests and diseases of the causal agent, the symptoms and plant pests and diseases pests and diseases health management.
• Potato Leafhopper Management in Alfalfa - Identification features of this pest, its migratory habits, symptoms of the damage caused and management and control measures that can be taken.
• Spotted Alfalfa Aphid - Photographs and information on the damage done by this insect, grassland, hay and forage its description, life history and biological and chemical controls.
• Alfalfa and Sweet Clover - Information on a number of diseases that affect grassland, hay and pests and diseases forage these crops, with photographs and suggested control measures.
• Blue Alfalfa Aphid and Pea Aphid - Both these aphids attack alfalfa and can cause alfalfa damage. Description, pests and diseases photographs and information on management, monitoring, alfalfa biological and chemical controls.
• Alfalfa Leaf Diseases - Photographs and information on a number of diseases alfalfa that affect grassland, hay and forage this crop.
• Alfalfa Disease Management - Provides information on disease identification, control, field monitoring, scouting and alfalfa resistant varieties.
• Alfalfa Insects: Integrated Crop Management - Photographs and information to help in identification of grassland, hay and pests and diseases forage the many insects to be found in first-cutting grassland, hay pests and diseases and forage alfalfa, both friend and foe.
• Alfalfa Plant Diseases and Damage - Photographs of plants infected by various pathogens and pests and diseases pests, with links to articles on integrated crop pests and diseases management.
• 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.
• Managing the Alfalfa Weevil - The identification and life cycle of the alfalfa weevil are discussed along with economic thresholds and management using cultural, biological and chemical methods.
• Management of Blister Beetles in Alfalfa - These insects contain a blistering agent which is grassland, hay and grassland, hay and forage forage toxic to horses and cattle. This article provides grassland, hay grassland, hay and forage and forage information on their life cycle, the serious damage grassland, grassland, hay and forage hay and forage they can cause to livestock when ingested and grassland, hay and forage grassland, hay and forage preventative measures that may be taken.
• Diseases of Alfalfa: Nematodes - Information on the damage done by the stem nematode, Ditylenchus pests and diseases dipsaci, with photographs of infected plants.

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