Yuma County, Arizona
July 29, 2002
Yuma County Office
Insect Management: Beet armyworm and western yellowstriped armyworm moths are appearing in pheromone traps and larvae can be found in sweep net samples from alfalfa fields. It is not necessary to treat these worms until they reach the threshold of 15 non-parasitized worms per sweep.
Weed Control: The classification of weeds as summer or winter annuals is inappropriate in the low deserts where mild winters and frequent summer irrigations make it possible for weeds to grow out of season. For example, goosefoot and lambsquarters can be found now in some fields and sprangletop will often grow throughout the winter.
10 Year Summary (July 16, to July 29, 1993-2002):
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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