Alfalfa

Planting and Establishing a Stand

• Introduction
• Preplant
• Stand Establishment
• Growth to First Cutting
• Pesticide Application Checklist

Established Stands

• Introduction
• Winter
• Spring
• Summer
• Fall
• Pesticide Application Checklist

• Integrated Pest Management
• Site Selection to Avoid Pest Problems
• Selection of Alfalfa Varieties
• Field Preparation
• Crop Rotation Impacts on Pests
• Harvest Scheduling and Harvest Impacts on IPM
• Irrigation Management Impacts on IPM
• Checking Soil Moisture

General Information

• Sampling with a Sweep Net
• Aphid Monitoring
• Alfalfa Caterpillar and Armyworm Monitoring
• Biological Control
• Pest Management by Early Harvesting—Summer and Fall
• Relative Toxicities of Insecticides and Miticides Used in Alfalfa to Natural Enemies and Honey Bees

Insect, Mite, and Other Invertebrate Management

• Alfalfa Caterpillar
• Beet Armyworm
• Blister Beetles
• Blue Alfalfa Aphid
• Clover Root Curculio
• Cowpea Aphid
• Cutworms
• Grasshoppers
• Ground Mealybug
• Leafhoppers
• Mormon Cricket
• Pale-Striped Flea Beetle
• Pea Aphid
• Spider Mites
• Spotted Alfalfa Aphid
• Sweetpotato Whitefly
• Threecornered Alfalfa Hopper
• Thrips
• Webworm
• Weevils (Alfalfa and Egyptian Alfalfa)
• Western Yellowstriped Armyworm

• Air Pollution
• Alfalfa Dwarf
• Alfalfa Mosaic Virus and Cucumber Mosaic Virus
• Anthracnose
• Bacterial Wilt
• Common Leaf Spot
• Downy Mildew
• Fusarium Wilt
• Phymatotrichopsis Root Rot (Texas Root Rot)
• Phytophthora Root and Crown Rot
• Rhizoctonia Root Canker
• Scald (Flooding and High Temperature Injury)
• Sclerotinia Stem and Crown Rot (White Mold)
• Seedling or Damping-Off Diseases
• Spring Black Stem
• Stagonospora Crown and Root Rot
• Stemphyllium Leaf Spot
• Summer Black Stem and Leaf Spot
• Verticillium Wilt

• Nematodes

General Information

• Herbicide-Tolerant Varieties as a Weed Management Strategy
• Preventing Weed Resistance And Weed Shifts
• Weed Survey—Seedling to Stand Establishment
• Weed Survey, Established Stands—Winter
• Weed Survey, Established Stands—Summer
• Weed Survey, Established Stands—Fall

Weed Management (Seedling)

• Integrated Weed Management in Seedling Alfalfa
• Common and Scientific Names of Weeds in Seedling Alfalfa
• Susceptibility of Weeds to Herbicide Control in Seedling Alfalfa
• Herbicide Treatment Table for Seedling Alfalfa

Weed Management (Established)

• Integrated Weed Management in Established Alfalfa
• Special Weed Problems in Established Alfalfa
• Common and Scientific Names of Weeds in Established Alfalfa
• Susceptibility of Winter Weeds to Herbicide Control in Established Alfalfa
• Susceptibility of Spring and Summer Weeds to Herbicide Control in Established Alfalfa
• Herbicide Treatment Table for Established Alfalfa

General Information

• Managing Vertebrates

Vertebrate Management

• California Ground Squirrels
• Pocket Gophers
• Voles (Meadow Vole, Meadow Mice)

Forms

• Annual Checklist for Planting and Establishing a Stand (PDF)
• Aphid Monitoring and Sampling (PDF)
• Caterpillar Monitoring and Sampling (PDF)
• Leafhopper Monitoring (PDF)
• Weed Survey for Established Stands (PDF)
• Weed Survey for Seedling Alfalfa (PDF)
• Weevil Monitoring (PDF)
• NRCS Step-By-Step Form for Developing a Pest Management Component of a Conservation Plan (PDF)
• NRCS Step-By-Step Instructions for Developing a Pest Management Component of a Conservation Plan (PDF)

Photo Identification

• Aphids
• Natural Enemies of Aphids
• Caterpillars
• Other Pests in Summer
• Pests in Seedling Alfalfa
• Vertebrates
• Diseases in Stand Establishment
• Diseases and Nematodes in Spring
• Diseases in Summer
• Perennial/biennial Weeds at Planting
• Summer Annual Weeds at Planting
• Winter Annual Weeds
• Perennial/biennial Weeds in Established Stands
• Summer Annual Weed Seedlings
• Problematic Weeds

• California Alfalfa Workgroup
• Chlorpyrifos Decision-Support Tool
• Herbicide Resistance: Glyphosate
• Herbicide Symptoms Photo Repository Website and Tool
• Irrigated Alfalfa Management
• Mitigating Pesticide Hazards
• UC Agronomy Research and Information Center
• UC Weed Research and Information Center
• Year-Round IPM Programs Video