Yuma County, Arizona
October 6, 2003
Yuma County Office
Insect Management: Sowbugs (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: Now is the time to apply preemergence herbicides
for winter annual weed control. Annual bluegrass, for instance, can germinate
in October and is controlled prior to germination with Trifluralin granules
but is difficult to control once established. For more information about
using herbicides on alfalfa read Alfalfa
Weed Control in the Low Deserts of Arizona (2002), PDF file, 96 KB
10 Year Summary (Sept 23 - Oct 6, 1994-2003):
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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Forages: Crop Mgmt | Soil Mgmt | Irrigation | Alfalfa Reports | Insects | Diseases | Weeds | Pesticides
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