Yuma County, Arizona
October 7, 2002
Yuma County Office
Insect Management: Sowbugs and pillbugs ( picture) are crustaceans, more closely related to crayfish than insects. 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 an insecticide bait spread evenly over the field or by using a broad spectrum insecticide spray.
Weed Control: Roundup ready alfalfa seed is expected to be available in the next few years. Glyphosate is the same herbicide that has been used for 30 years and the rates, timing and weeds controlled are well known. Using it in alfalfa will be complicated by the frequent cuttings and rapid regrowth. Weeds should not be cut before the herbicide has translocated through them and applications should not be made when weeds are covered by the crop.
10 Year Summary (Sept. 24 - Oct. 7,
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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