Yuma County, Arizona
March 10, 2003
Yuma County Office
Insect Management: Insect management in alfalfa depends on a good monitoring program. Management decisions should be based on suitable sampling methods to estimate insect pests populations. Check fields at least once a week and more often when counts show that a pest population is approaching damaging levels. Correct identification of insect pests and their damage is essential. Several factors need to be considered when sampling insect populations. Time of day can greatly influence the reliability sampling methods. Nocturnal pests hide during the day. Morning dew or strong winds can alter counts of some insects. Sample at several sites in each field quadrant. Choose sampling methods that are reliable for the insect pests being monitored. Avoid field edges for general sampling, but observe field edges for invading insects. Contact your local Cooperative Extension office for information on alfalfa insect pests, sample procedures, and control measures.
Weed Control: More herbicides (13) are registered for use on alfalfa
than for any other crop grown in Arizona. This reflects the importance
of this crop nationally. It is also because alfalfa has many of the same
herbicide tolerances as soybeans, another major crop.
10 Year Summary (Feb 25 - March 10, 1993-2003):
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, firstname.lastname@example.org Extension Agent, Yuma County
Michael Ottman, email@example.com Agronomy Specialist
College of Agriculture, The University of Arizona.
Eric Natwick, firstname.lastname@example.org UCCE Imperial County - Farm Advisor
University of California, Davis, CA.
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located at: http://cals.arizona.edu/crops/counties/yuma/alfalfareports/afalfarpt031003.html
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