Journal of Chemical Ecology

, Volume 24, Issue 2, pp 303–319

Specificity of Systemically Released Cotton Volatiles as Attractants for Specialist and Generalist Parasitic Wasps

  • Ursula S. R. Röse
  • W. Joe Lewis
  • James H. Tumlinson
Article

DOI: 10.1023/A:1022584409323

Cite this article as:
Röse, U.S.R., Lewis, W.J. & Tumlinson, J.H. J Chem Ecol (1998) 24: 303. doi:10.1023/A:1022584409323

Abstract

Cotton plants under herbivore attack release volatile semiochemicals that attract natural enemies of the herbivores to the damaged plant. The volatiles released in response to herbivory are not only released from the damaged leaves but from the entire cotton plant. We found that cotton plants that released myrcene, (Z)-3-hexenyl acetate, (E)-β-ocimene, linalool, (E)-4,8-dimethyl-1,3,7-nonatriene, (E)-β-farnesene, and (E, E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene systemically from undamaged leaves of caterpillar damaged plants were attractive to the generalist parasitoid Cotesia marginiventris and the specialist parasitoid Microplitis croceipes. Plants from which the caterpillar damaged leaves were removed and that released those compounds systemically were significantly preferred over undamaged control plants in two-choice experiments in a flight tunnel. Artificially damaged cotton plants that released green leafy volatiles and constitutive terpenoids were less attractive for M. croceipes and C. marginiventris. Only C. marginiventris preferred artificially damaged plants over undamaged control plants, whereas M. croceipes showed no preference. The apparent lack of specificity of systemically released compounds in response to different herbivores feeding on the lower leaves is discussed.

Gossypium hirsutum cotton parasitoids Microplitis croceipes Cotesia marginiventris plant–insect interactions volatile semiochemicals systemic induction plant defense host-searching behavior generalist specialist 

Copyright information

© Plenum Publishing Corporation 1998

Authors and Affiliations

  • Ursula S. R. Röse
    • 1
  • W. Joe Lewis
    • 3
  • James H. Tumlinson
    • 1
  1. 1.Center for Medical, Agricultural and Veterinary Entomology, Agricultural Research ServiceU.S. Department of AgricultureGainesville
  2. 2.Max-Planck Institute für Chemische ÖkologieJenaGermany
  3. 3.Insect Biology and Population Management Research Laboratory, Agricultural Research ServiceU.S. Department of AgricultureTifton

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