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Title: Synergism of turpentine and ethanol as attractants for certain pine-infesting beetles (Coleoptera)

Journal Article · · Environ. Entomol.; (United States)
DOI:https://doi.org/10.1093/ee/17.3.456· OSTI ID:7036670

Responses of seven species of pine-infesting beetles to traps baited with either turpentine, ethanol, turpentine and ethanol released from separate dispensers, or a 1:1 solution of turpentine and ethanol released from one dispenser were assessed in three field experiments. The weevil species, Pachylobius picivorus (Germar), and the cerambycid pine sawyer, Monochamus carolinenis (Olivier), were attracted to turpentine and were unaffected by the addition of ethanol. The ambrosia beetle, Xyleborus affinis Eichhoff, responded to ethanol alone but was not attracted to turpentine, nor did the presence of turpentine significantly affects its response to ethanol. The remaining four species) hylobius pales, M. titillator, Dendroctonus terebrans and x. pubescens) displayed responses to turpentine that were enhanced by the addition of ethanol, but in different ways according to the method of deployment. Reasons for increased responses by some species to a solution of turpentine and ethanol over the two released separately are not clear; they may lie in different dosages of evaporation rates of volatiles in the field. Laboratory analyses of trapped headspace volatiles from dispensers containing only turpentine and those containing a solution of turpentine and ethanol revealed no differences in the amounts of four principal monoterpene hydrocarbons (..cap alpha..-pinene, camphene, ..beta..-pinene, and limonene) released over time.

Research Organization:
Univ. of Florida, Gainesville (USA)
OSTI ID:
7036670
Journal Information:
Environ. Entomol.; (United States), Vol. 17:3
Country of Publication:
United States
Language:
English