Structure-activity relationship of flavones as growth inhibitors of the navel orangeworm
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Updated: May 5, 2026

Author Spotlight: Development and Challenges of Feeding Assays for Insect Pest Management
Published on: May 26, 2023
N E Mahoney1, J N Roitman, B C Chan
1Western Regional Research Center, U.S. Department of Agriculture, 94710, Albany, California.
Abstract:
A series of flavones with widely varying degrees of substitution was fed to neonate larvae of the navel orangeworm. Growth of navel orangeworm larvae is inhibited by 5-methoxy flavones and flavone itself; 5-hydroxy flavones do not inhibit growth. Host resistance of citrus fruit to attack by the navel orangeworm might be due to the 5-methoxy flavones that occur in the peels.
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