Volatiles associated with preferred and nonpreferred hosts of the nantucket pine tip moth, Rhyacionia frustrana

  • Authors: Asaro, Christopher; Sullivan, Brian T.; Dalusky, M.J.; Berisford, C. Wayne
  • Publication Year: 2004
  • Publication Series: Miscellaneous Publication
  • Source: Journal of Chemical Ecology, 30(5): 977-989

Abstract

Ovipositing female Nantucket pine tip moth, Rhyacionia frustrana, prefer loblolly pine, Pinus taeda L., to slash pine, Pinus elliottii Englem. except during the first spring following planting of seedlings. Host discrimination by R. frustrana increases as seedlings develop, suggesting that changes in hte chemical composition of seedlings may mediate the moth's host preferences. Volatile compounds from slash and loblolly pine seedlings were collected using solidphase microextraction (SPME) during the first year following planting. Four collection periods coincided with adult emergence and oviposition during each of four annual genearations of R. frustrana in the Georgia Coastal Plain. Infestation of slash pine peaked during the second tip moth generation and was similar to the loblolly pine infestation level. By the fourth tip moth generation, slash pine infestation levels had declined and diverged considerably from those of loblolly pine. Significant differences in relative quantities of β-pinene, α-phellandreen, limonene, β-phellandrene, bornyl acetate, β-caryophyllene, and an unidentified sesquiterpene occurred between slash and loblolly pine during the fourth generation and host damage that could readily explain the temporal changes in R. frustrana host preference. Gas chromatographic-electroantennographic detection (GC-EAD) analyses of standards identified 19 different seedling-associated compounds that elicited antennal responses from R. frustrana females, indicating that a blend of terpenoids may mediate host discrimination.

  • Citation: Asaro, Christopher; Sullivan, Brian T.; Dalusky, M.J.; Berisford, C. Wayne 2004. Volatiles associated with preferred and nonpreferred hosts of the nantucket pine tip moth, Rhyacionia frustrana. Journal of Chemical Ecology, 30(5): 977-989
  • Keywords: Tortricidae, Pinus taeda, Pinus elliottii, terpenes, host selection, solid-phase microextraction, electroantennogram
  • Posted Date: April 1, 1980
  • Modified Date: August 22, 2006
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.