Soybean Aphids
in South Dakota

            Mike Catangui, Ph.D. - Professor of Plant Science / Extension Entomologist
            Walt Riedell, Ph.D. -  Plant Physiologist, NCARL-USDA-ARS
            Eric Beckendorf - Biological Technician, NCARL-USDA-ARS



. . . . . Have a Safe and Bountiful Harvest! . . . . . Update 10-1-08:  The Yield Difference Between the Best Performing Insecticide and the Untreated was 28.9 bushels per acre . . . . . Did you say 2000% return-on-investment? . . . . .

. . . . . 71% yield loss due to soybean aphids possible in some areas . . . . . 16-29 bu/ac increase in yield recorded in sprayed plots . . . . .


New! Commentary  |  2008 Update

Performances of Insecticides  2005: Yield | Aphids  |                        

Stage specific economic injury levels for V5, R2, R4, and R5


 |  SEE Home          Insecticide Performances:   2004-I  2004-II  |  2002  |  Commentary


 Posted by Mike Catangui on May 15, 2002.  Last updated on Tuesday June 23, 2009.