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Heritable variation of sex pheromone composition and the potential for evolution of resistance to pheromone-based control of the Indian meal moth, Plodia interpunctella

Author

Summary, in English

The short-term evolutionary effect of pheromone-based mating disruption on the mating ability of the Indian meal moth, Plodia interpunctella, was investigated. Three independent selection lines were established, and the mating ability of moths in plastic tents treated with high doses of pheromone and in control tents was compared for two consecutive generations. In addition, the heritability of the sex pheromone blend, measured as the ratio of two major pheromone components (Z, E)-9,12-tetradecadienyl acetate and (Z, E)-9,12-tetradecadienol, was estimated. Based on a mother-daughter regression analysis including 21 families, the heritability of the pheromone blend was 0.65 +/- 0.14, indicating a potential for evolutionary change of the character. However, no increase in mating ability of females in pheromone-treated tents or alteration of the pheromone blend was observed in any selection line when compared with control lines, indicating no or weak selection on the pheromone blend as well as other traits influencing mating ability of this species under the created mating disruption conditions. Factors contributing to the lack of selection effects are discussed.

Publishing year

2002

Language

English

Pages

1447-1461

Publication/Series

Journal of Chemical Ecology

Volume

28

Issue

7

Document type

Journal article

Publisher

Springer

Topic

  • Biological Sciences
  • Zoology

Status

Published

Project

  • Pheromones and kairomones for control of stored product pests

Research group

  • Pheromone Group

ISBN/ISSN/Other

  • ISSN: 1573-1561