Effects of varying ethanol and turpentine levels on attraction of two pine root weevil species, Hylobius pales and Pachylobius picivorus (Coleoptera: Curculionidae)

L. K. Rieske, K. F. Raffa

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The pales weevil, Hylobius pales (Herbst), and the pitch-eating weevil, Pachylobius picivorus (Germar), are part of a weevil complex causing extensive damage to plantation pines throughout the Lake States. A means of monitoring weevil populations has been developed using pitfall traps baited with ethanol and turpentine. The relative attractiveness of six combinations of ethanol and turpentine were compared. Traps were monitored throughout the 1988 and 1989 growing seasons in a Scots pine Christmas tree farm. Both species were more strongly attracted to ethanol/turpentine ratios above 1:1. Pales weevils preferred slightly higher ethanol/turpentine ratios than did pitch-eating weevils. Within species, both sexes responded equivalently among treatments. The implications of these behavioral responses to weevils' locating stressed trees, the role of chemical ecology in niche partitioning, and IPM of pine root weevils are discussed.

Original languageEnglish
Pages (from-to)48-52
Number of pages5
JournalEnvironmental Entomology
Volume20
Issue number6
DOIs
StatePublished - Dec 1 1991

Bibliographical note

Funding Information:
We would like to thank the Kirk Company of Wau-toma, Wis., for the study sites and assistance with trap installation, and L. Zastoupil for his valuable advice. M. Bleck, J. Graetz, and L. Kellner assisted with data collection. We also thank D. B. Hogg and D. K. Young for reviewing this manuscript. This research was supported by the Christmas Tree Producers Associations of Wis., Minn., Mich., and Ill., the Wisconsin Department of Agriculture, Trade & Consumer Protection Sustainable Agriculture Grant 8825, USDA 86-CRCR-I-2077, USDA 86-FSTY-9-0210, Sigma Xi Grants-in-Aid of Research, the University of Wisconsin System Applied Research Program, and the University of Wisconsin-Madison, College of Agricultural and Life Sciences.

Funding Information:
We would like to thank the Kirk Company of Wau-toma, Wis., for the study sites and assistance with trap installation, and L. Zastoupil for his valuable advice. M. Bleck, J. Graetz, and L. Kellner assisted with data collection. We also thank D. B. Hogg and D. K. Young for reviewing this manuscript. This research was supported by the Christmas Tree Producers Associations of Wis., Minn., Mich., and Ill., the Wisconsin Department of Agriculture, Trade & Consumer Protection Sustainable Agriculture Grant 8825, USDA 86-CRCR-1-2077, USDA 86-FSTY-9-0210, Sigma Xi Grants-in-Aid of Research, the University of Wisconsin System Applied Research Program, and the University of Wisconsin-Madison, College of Agricultural and Life Sciences.

Publisher Copyright:
© 1991 Entomological Society of America.

Keywords

  • Host volatiles
  • Hylobius spp.
  • Insecta
  • Pachylobius spp.

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Insect Science

Fingerprint

Dive into the research topics of 'Effects of varying ethanol and turpentine levels on attraction of two pine root weevil species, Hylobius pales and Pachylobius picivorus (Coleoptera: Curculionidae)'. Together they form a unique fingerprint.

Cite this