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Sensitivity to 2,4-D in Sunflower as an Indicator of Tolerance to the Sunflower Midge (Diptera: Cecidomyiidae)
Faculty Publications: Department of Entomology
  • Marc D. Anderson, North Dakota State University
  • Gary J. Brewer, University of Nebraska-Lincoln
Date of this Version
1-1-1992
Disciplines
Comments

Published in Journal of Economic Entomology 85(1): 299-303 (1992). Copyright 1992 Entomological Society of America. Used by permission.

Abstract

Nine sunflower hybrids were evaluated for their sensitivity to 2,4-dichlorophenoxyacetic acid (2,4-D) as measured by the production of ethylene. Sensitivity to 2,4-D was then compared with the degree of field tolerance to the sunflower midge, Contarinia schulzi Gagné, exhibited by each hybrid. For the hybrids evaluated, ethylene production increased with 2,4-D concentration and sensitivity to 2,4-D was inversely proportional to midge tolerance. The procedure may be useful in identifying midge tolerant germplasm.

Citation Information
Marc D. Anderson and Gary J. Brewer. "Sensitivity to 2,4-D in Sunflower as an Indicator of Tolerance to the Sunflower Midge (Diptera: Cecidomyiidae)" (1992)
Available at: http://works.bepress.com/gary_brewer/5/