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Resistance in Sunflower and Interaction with Bacillus thuringiensis for Control of Banded Sunflower Moth (Lepidoptera: Tortricidae)
Faculty Publications: Department of Entomology
  • Jawahar L. Jyoti, North Dakota State University
  • Gary J. Brewer, University of Nebraska-Lincoln
Date of this Version
1-1-1999
Disciplines
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Published in Journal of Economic Entomology 92(5): 1230-1233 (1999). Copyright 1999 Entomological Society of America. Used by permission.

Abstract
Four sunflower accessions were compared with a susceptible check, hybrid ‘894’, in the greenhouse to determine their resistance to the banded sunflower moth, Cochylis hospes Walsingham, and their interaction with Bacillus thuringiensis Berliner variety kurstaki. Antibiosis, expressed as lower larval weights, was detected in all of the accessions. In addition to being antibiotic, sunflower accession Ames 3291 was antixenotic to banded sunflower moth oviposition and exhibited an additional impact on larval weight when B. thuringiensis was applied. By itself, B. thuringiensis provided better control of banded sunflower moth than the resistance tested. However, banded sunflower moth-resistant sunflower would be a good option when B. thuringiensis or another insecticide is not applied, and it may prevent the economic threshold from being reached.
Citation Information
Jawahar L. Jyoti and Gary J. Brewer. "Resistance in Sunflower and Interaction with Bacillus thuringiensis for Control of Banded Sunflower Moth (Lepidoptera: Tortricidae)" (1999)
Available at: http://works.bepress.com/gary_brewer/8/