University of Arizona a dot Cooperative Extension

Alfalfa Report
Yuma County, Arizona
June 2, 2004

(PDF version 23KB)

Production Update:

Adding Moisture to Windrows: Producing high quality hay in hot, dry desert areas is a challenge due leaf loss when raking or baling. Growers typically wait for dew to appear late at night or early in the morning. Leaf losses can range from 5 to 10% even under the best conditions, and can be as high as 20% or more if the leaves become too dry. Windrow moisture can be increased by irrigating closer to cutting or by applying moisture to the windrow. Moisture can be applied to windrows with equipment as simple as a water truck or with specially designed spraying equipment.

Insect Management: Alfalfa looper, Autographa californica (Speyer) (Detour sign picture), is a minor pest of desert alfalfa. They are often present with alfalfa caterpillars or beet armyworms in sweep samples. Larvae move with a characteristic looping motion by bringing their hind prolegs forward to meet the true legs. Eggs are laid singly, larvae hatch within a few days, and feed for about two weeks devouring alfalfa leaves. The looper larva spin a loose white cocoon among the leaves to pupate. In about ten days to two weeks moths emerge. The entire cycle is completed in about a month. Alfalfa loopers are rarely of economic importance in Arizona or California due to natural control. This insect is usually held in check by parasitic wasps, parasitic flies, and bacterial, fungal and viral disease.

Weed Control: Dodder (Detour sign picture) is becoming increasingly widespread. It can be effectively controlled preemergence with multiple applications of trifluralin granules. Post emergence control can only be successful if the current crop foliage is destroyed along with the dodder that is living off of it. Any contact treatment that desiccates the crop but does not effect the below ground portion of the alfalfa will work.

Market Summary
Off grade
Past 2 Weeks (2004)
Last Year (2003)


10 Year Summary (May 18, to June 1, 1995-2004):

Graph of the 10 year summary prices for alfalfa , May 18 to June 2, 1995-2004

Full Disclaimers

Issued in furtherance of Cooperative Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, James A. Christenson, Director Cooperative Extension, College of Agriculture and Life Sciences, The University of Arizona.

The University of Arizona is an equal opportunity, affirmative action institution. The University does not discriminate on the basis of race, color, religion, sex, national origin, age, disability, veteran status, or sexual orientation in its programs and activities.

Any products, services, or organizations that are mentioned, shown, or indirectly implied in this web document do not imply endorsement by The University of Arizona.

Information provided by:
Barry Tickes, Extension Agent, Yuma County
Michael Ottman, Agronomy Specialist
College of Agriculture, The University of Arizona.
Eric Natwick, UCCE Imperial County - Farm Advisor
University of California, Davis, CA.

Yuma County: Field Crops | Farm Notes | Alfalfa Reports | Vegetables

Forages: Crop Mgmt | Soil Mgmt | Irrigation | Alfalfa Reports | Insects | Diseases | Weeds | Pesticides
Home | Other Crops | Forages

For more Arizona Production Ag Information:
Home | Cotton | Veggies| Forages | Grains | Citrus | Crop x Crop | Insects | Diseases| Weeds | Pesticides | News | Weather | Research | Photos | Contacts | General Info. | Site Map

document located at:
Copyright © 2001 University of Arizona,
College of Agriculture and Life Sciences
Webmaster: Al Fournier (