Yuma County, Arizona
October 21, 2002
Yuma County Office
Insect Management: Field cricket adults are dark brown to black and up to one inch long. Nymphs look like adults and undergo 8 to 12 instars (picture). Crickets are pests of seedling stands and rarely, if ever, cause problems in established stands. In newly planted fields, crickets clip off seedlings. Control crickets using an insecticide bait spread evenly over the field or by using a broad spectrum insecticide spray. Adult palestriped flea beetles (picture)often migrate to seedling alfalfa stands. Adults feed on the upper leaf tissues leaving windows. Seedling alfalfa can sustain much feeding damage without hurting stand establishment.
Weed Control: EPTAM 7E was the first herbicide registered for water-run applications. It is also available as a 20% granule. The granular formulation is often a more efficient way of applying this highly volatile herbicide as long as it is incorporated with water within 12 hours. Because the granule is more efficiently applied than the water-run 7E application, 2 lbs. active ingredient of the 20G is often equivalent to 3 lbs. active ingredient of the 7E.
10 Year Summary (Oct. 8 - Oct. 21, 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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