Yuma County, Arizona
July 12, 2004
(PDF version, 22KB)
Insect Management: Webworms (picture) (alfalfa webworm, beet webworm and garden webworm) are occasional pests of desert alfalfa. The larvae of these small moths are slender, usually greenish yellow, striped or spotted caterpillars which may reach an inch in length. Webworm larvae devour leaves beneath silken webs on the upper parts of plants in summer and fall. They do not cause serious economic damage. Harvesting infested hay greatly reduces the numbers in the next crop cycle.
10 Year Summary (June 28, to July 12, 1995-2004):
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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