Journal of Insect Behavior

, Volume 4, Issue 4, pp 501–508

Recognition and avoidance of previously laid egg masses by the oblique-banded leafroller (Lepidoptera: Tortricidae)

Authors

  • L. M. Poirier
    • Centre for Pest Management, Department of Biological SciencesSimon Fraser University
  • J. H. Borden
    • Centre for Pest Management, Department of Biological SciencesSimon Fraser University
Article

DOI: 10.1007/BF01049334

Cite this article as:
Poirier, L.M. & Borden, J.H. J Insect Behav (1991) 4: 501. doi:10.1007/BF01049334

Abstract

Investigations were conducted on oviposition by laboratory-reared oblique-banded leafrollers, Choristoneura rosaceana Harris. In paperbag oviposition chambers, females deposited their egg masses in a significantly nonrandom, uniform manner in 16 of 20 replicates. Inpetri dish oviposition chambers, gravid females were exposed to egg masses recently deposited by other females. As determined by the magnitude of the mean direction vector of the second egg mass in relation to the first, females detected and avoided egg masses laid by other females. In addition, they avoided waxed paper from which a recently oviposited egg mass had been removed. This phenomenon is most likely due to a pheromone laid down with each egg mass.

Key words

Choristoneura rosaceanaoblique-banded leafrollerovipositionoviposition-deterrent pheromone

Copyright information

© Plenum Publishing Corporation 1991