trans1_small
University of Arizona
When autocomplete results are available use up and down arrows to review and enter to select.
  • Home
  • Pest Identification
    • Pest Identification Home
    • Diseases
    • Weeds
    • Insects
    • Pest Diagnostics
    • Pest Identification - Outputs
    • Events
    • Frequently Asked Questions
  • Agricultural IPM
    • Agricultural IPM Home
    • Vegetables
    • Field Crops
    • Other Crops
    • Agricultural Pesticide Safety
    • Agricultural IPM Outputs
    • Events
    • Frequently Asked Questions
  • IPM Assessment
    • IPM Assessment Home
    • Crop Pest Losses
    • Impacts
    • EPA Pesticide Registration Reviews
    • How To Submit Comments to EPA
    • Previously Submitted EPA Comments
    • Projects
    • IPM Assessment Outputs
    • Frequently Asked Questions
  • Community IPM
    • Community IPM Home
    • School IPM
    • Public Health IPM
    • Turfgrass
    • Community Pesticide Safety
    • Community Insect Gallery
    • Handbook on Pests
    • Home and School IPM Newsletters
    • Community IPM Resources
    • Events
    • Frequently Asked Questions
  • Pesticide Education and Training
    • Pesticide Education and Training Home
    • Ag Licensing Resources
    • Community Licensing Resources
    • Special Pesticide Registrations
    • Pesticide Safety Outputs
    • Events
    • Frequently Asked Questions
  • About Us
    • Partners and Links
    • Contact Us
    • Organizational Chart
    • Arizona Pest Management Center
    • Mission
    • Working Groups
    • Organization
    • Social Media
  • Home
  • Pest Identification
    • Pest Identification Home
    • Diseases
      • Publications And Resources
      • Photo Gallery
    • Weeds
      • Sample Submissions
      • Publications And Resources
      • Noxious Invasive Weeds
      • Weed Photo Gallery
      • Herbicide Injury
    • Insects
      • Sample Submissions
      • Publications And Resources
      • Insect Collection
      • Photo Gallery
      • Insect Injury
      • Community Insect Gallery
    • Pest Diagnostics
      • Herbicide Injury
      • Insect Injury
      • Publications And Resources
      • Photo Gallery
    • Pest Identification - Outputs
      • Presentations
      • Publications
      • Shorts
      • Medias
    • Events
    • Frequently Asked Questions
  • Agricultural IPM
    • Agricultural IPM Home
    • Vegetables
      • Lettuce
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
      • Melons
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
      • Cole Crops
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
      • Spinach
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
      • Vegetable Outputs
        • Presentations
        • Publications
      • VIPM Updates
      • VIPM Archive
      • Vegetable Video Archive
      • VIPM Update Cartoons
      • Events
    • Field Crops
      • Alfalfa
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Corn and Sorghum
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Cotton
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Guayule
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Small Grains
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Risk Reduction
      • Outputs
        • Publications
        • Presentations
        • Videos
      • Events
      • Field Crops IPM Shorts
    • Other Crops
      • Citrus
      • Tree and Nut Crops
      • Cross Commodity
    • Agricultural Pesticide Safety
    • Agricultural IPM Outputs
      • Presentations
      • Publications
      • Agricultural IPM Shorts
    • Events
    • Frequently Asked Questions
  • IPM Assessment
    • IPM Assessment Home
    • Crop Pest Losses
      • Cotton Pest Losses
      • Vegetable Pest Losses
    • Impacts
    • EPA Pesticide Registration Reviews
    • How To Submit Comments to EPA
    • Previously Submitted EPA Comments
    • Projects
      • Crop Pest Losses
    • IPM Assessment Outputs
      • Presentations
      • Publications
      • Shorts
    • Frequently Asked Questions
  • Community IPM
    • Community IPM Home
    • School IPM
      • Stop School Pests
      • IPM for Sensitive Sites in the Built Environment
    • Public Health IPM
      • Arizona Conenose Bugs
      • Bed Bugs
      • Bees
      • Body Lice
      • False Chinch Bugs
      • Fire Ants
      • Head Lice
      • Longhorned Tick
      • Mosquitoes
      • Scorpions
      • EPA Border 2020
    • Turfgrass
      • Pre-emergence Weed Control - Lawns
      • History of the Lawn and Turfgrass
      • Nitrogen and Iron Deficiencies
      • Publications and Resources
    • Community Pesticide Safety
      • Presentations
      • Publications
    • Community Insect Gallery
    • Handbook on Pests
    • Home and School IPM Newsletters
    • Community IPM Resources
    • Events
      • 2021 Emergency Preparedness Workshop
      • 2022 Emergency Preparedness Workshop
    • Frequently Asked Questions
  • Pesticide Education and Training
    • Pesticide Education and Training Home
    • Ag Licensing Resources
    • Community Licensing Resources
    • Special Pesticide Registrations
    • Pesticide Safety Outputs
      • Presentations
      • Publications
      • Pesticide Safety Shorts
    • Events
    • Frequently Asked Questions
  • About Us
    • Partners and Links
    • Contact Us
    • Organizational Chart
    • Arizona Pest Management Center
    • Mission
    • Working Groups
    • Organization
    • Social Media
  1. Agricultural IPM
  2. Field Crops
  3. Alfalfa
  4. Weeds
Alfalfa Weeds
Pasture Weed Control

Weed control is best accomplished by maintaining a healthy pasture, mowing, proper drainage, and avoiding soil compaction. Periodic grazing or clipping of the pasture prevents weeds from producing seed. Herbicides can also be very effective in controlling weeds, but their costs must be weighed against benefits gained. Chemicals are best used to spot-treat concentrations of weeds rather than for spraying the entire grazing area.

 

Woody plants, such as mesquite, desert broom and burrobrush, can be serious weeds in some pastures. These will need to be plowed out periodically.


Back to Top

Weeds Publications
  • Nov 2015
    Cowpea Aphid in Alfalfa
    Publication (PDF, 248KB)
    Authors: John Palumbo and Barry Tickes
    Recent outbreaks of cowpea aphid in alfalfa are more than a local phenomena. Large populations of cowpea aphids have been reported throughout Arizona. The reason behind these outbreaks are unknown. This article hopes to bring some insight by discussing the cowpea aphid, the damage it causes, and suggestions on controlling it.
  • Jan 2014
    Summer Slump in Alfalfa
    Publication (PDF, 425KB)
    Authors: Mike Ottman and Ayman Mostafa
    “Summer slump” is a decline in growth of alfalfa usually beginning in July in areas where maximum daily temperature exceeds 100 °F, such as the low elevation deserts of Southwestern U.S. This article discusses some of the causes behind this and potential impacts.
  • Apr 2008
    Alfalfa Weed Control in the Low Deserts of Arizona
    Publication (PDF, 443KB)
    Authors: Barry Ticks and Mike Ottman
    Alfalfa is a vigorous crop that is very competitive with weeds. However, chemical weed control is often necessary even in well managed alfalfa since the marketplace has a low tolerance for weeds in alfalfa hay.
  • Jul 1999
    Growing Alfalfa for Seed in Arizona
    Publication (PDF, 29KB)
    Authors: Stephen H. Husman
    Due to worldwide shortages of non-dormant alfalfa seed, production opportunities and acreage have increased recently in central Arizona. This article gives some suggestions regarding growing alfalfa for seed in Arizona.
  • Sep 1994
    Establishing irrigated pasture at 4,000- to 6,000-foot elevations in Arizona
    Publication (PDF, 46KB)
    Authors: Deborah Young, Bill Frost, Mike Schneider
    Irrigated pasture can provide forage for livestock, be useful during breeding and calving time, serve as an exercise area for horses, and conserve and improve soil and provide an alternative to rangeland. This article discussing establishing a pasture at elevations in Arizona between 4,000 and 6,000 feet.
  • Jan 1981
    Management of Perennial Irrigated Pastures
    Publication (PDF, 1.32MB)
    Authors: Robert E. Dennis
    Forage stands are maintained longer when pastures are properly managed. When a mixture is used, try to maintain each species in its original proportion. This article gives suggestions for maintaining pastures.

Back to Top

Alfalfa Weeds Presentations
  • Oct 2019
    Alfalfa Production: Getting a Good Start
    Presentation (PDF, 4.8MB)
    Authors: Mike Ottman
    Location Presented: Parker and Blythe

Back to Top

APMC Logo BW Inverted
CALS Logo Black and white Inverted
ARIZONA PEST MANAGEMENT CENTER
University of Arizona
College of Agriculture and Life Sciences
Maricopa Agricultural Center

37860 W. Smith-Enke Road
Maricopa, AZ 85239
FULL CONTACT
LIST
facebook
twitter


© Arizona Board of Regents

University Privacy Statement