University of Arizona a dot Cooperative Extension

Alfalfa Report
Yuma County, Arizona
October 18, 2004

(PDF version, 24KB)

Production Update:

Center Pivots: Center pivot irrigation systems have the advantage of allowing more frequent irrigation than surface flood systems. However, certain problems are unique to center pivot systems such as potassium deficiency which may not occur on soils that are flood irrigated.

Insect Management: Sowbugs (Detour sign picture) are crustaceans, more closely related to crayfish than insects. Sowbugs are commonly encountered in fields with an abundance of decomposing plant residue from a previous crop. They are oval in shape, appear to be many segmented, and are up to 0.5 inch long. Sowbugs are pests of seedling stands and rarely, if ever, cause problems in established stands. In newly planted fields, sowbugs can destroy seedlings by clipping them off. Control sowbugs using insecticide bait spread evenly over the field or by using a broad spectrum insecticide spray.
Weed Control: Now is the time to apply preemergence herbicides for winter annual week control in established stands. It’s better to be a month early than a day late with preemergent applications.

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


10 Year Summary (Oct 5, to Oct 18, 1995-2004):

Graph of the 10 year summary prices for alfalfa, Oct 5  to Oct 18, 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.

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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.

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