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      ETHANOL AS THE PRIMARY ATTRACTANT FOR THE AMBROSIA BEETLE TRYPODENDRON LINEATUM (COLEOPTERA: SCOLYTIDAE)

      The Canadian Entomologist
      Cambridge University Press (CUP)

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          Abstract

          Methanol, acetaldehyde, and ethanol have been identified in extracts of attractive wood and bark. The attractancy induced by anaerobic treatment in both sapwood and phloem of conifers and broadleaf trees was characterized by ethanol as the most concentrated component. In laboratory bioassays, ethanol was attractive at low concentration to both sexes ofTrypodendron lineatum(Olivier). Methanol and acetaldehyde, at the concentrations found, apparently play no role in attraction. Monoterpenes had a repellent effect onT.lineatum.

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          Most cited references19

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          Anaerobic induction of primary chemical attractancy for ambrosia beetles

          K. Graham (1968)
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            Release by Flight Exercise of a Chemotropic Response from Photopositive Domination in a Scolytid Beetle

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              Window Flight Traps for Insects

              During the past spring and summer glass barrier traps have been used as a means of sampling the flying populations of an ambrosia beetle,Trypodendronsp., and other scolytid beetles. The “window” trap has functioned well enough to warrant its brief description. A piece of window glass (2 × 2 ft.) is set in a three-sided wooden frame from which a sheet metal trough is hung. The trough is filled with fuel oil or water to which a wetting agent is added. Screened outlets provide for drainage of excess rain water in the laner case and when oil is present an inverted “L” tube drains this water from beneath the oil. Insects are collected by removing the trough and pouring its contents through a strainer. Traps are hung from various types of pole framework depending on their location, and guy wires are used to keep them from swinging.
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                Author and article information

                Journal
                applab
                The Canadian Entomologist
                Can Entomol
                Cambridge University Press (CUP)
                0008-347X
                1918-3240
                August 1970
                May 2012
                : 102
                : 08
                : 985-995
                Article
                10.4039/Ent102985-8
                beead0a2-633f-4662-b7c2-4ac99da30609
                © 1970
                History

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