The 2005 ESA Annual Meeting and Exhibition
December 15-18, 2005
Ft. Lauderdale, FL

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Saturday, December 17, 2005
D0469

Alternatives to organophosphates and carbamates for managing aphids in wheat and sorghum

Roxanne Bowling, rabowling@ag.tamu.edu1, Bonnie B. Pendleton, bpendleton@mail.wtamu.edu2, Robert Bowling, robert.bowling@pioneer.com3, and Gerald J. Michels, asychis@aol.com1. (1) Texas A&M University Agricultural Experiment Station, Entomology, TAES, 2301 Experiment Station Road, Bushland, TX, (2) West Texas A&M University, Division of Agriculture, P.O. Box 60998, Canyon, TX, (3) Pioneer Hi-Bred International, Inc, 501 Pine Avenue, Dumas, TX

As water becomes scarce, many corn farmers will change to more water-use efficient crops such as sorghum and wheat. The major insect pest of both crops is the greenbug. Greenbugs cost wheat farmers $250 million and sorghum farmers $126 million annually in crop losses and insecticides (USDA-ARS). The only foliar insecticides for aphids in wheat and sorghum are broad-spectrum organophosphates and carbamates. Implementation of the 1996 Food Quality Protection Act (FQPA) will result in the need for alternate controls for greenbug. Research will examine interactions of two non-chemical control strategies, plant resistance and biological control, using modifications to a practical, well-developed system based on wheat, sorghum, greenbugs, and a predaceous lady beetle. This project will develop and demonstrate practical and environmentally sound strategies to help end-users, wheat and sorghum farmers, reduce reliance on broad-spectrum insecticides. Specific objectives were to develop and demonstrate the need for conservation of beneficial insects and plant resistance, and demonstrate viable integrated pest management options for wheat and sorghum agroecosystems. Applied on-farm and University Experiment Station demonstrations are being used to educate farmers about alternative control methods.


Species 1: Hemiptera Aphididae Schizaphis graminum (greenbug)
Species 2: Coleoptera Coccinellidae Hippodamia convergens (convergent lady beetle)
Keywords: FQPA, control