Field Capture of Male Melon Flies, Bactrocera cucurbitae (Coquillett), in Jackson Traps Baited with Cue-Lure Versus Raspberry Ketone Formate in Hawaii
Field Capture of Male Melon Flies, Bactrocera cucurbitae (Coquillett), in Jackson Traps Baited with Cue-Lure Versus Raspberry Ketone Formate in Hawaii
Date
2012-12
Authors
Shelly, Todd E.
Kurashima, Rick S.
Nishimoto, Jon I.
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Hawaiian Entomological Society
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Abstract
The melon fly, Bactrocera cucurbitae (Coquillett), is an invasive
worldwide pest of vegetables, particularly various species of squashes and melons.
Because it poses a serious economic threat, many countries operate continuous
trapping programs to detect incipient infestations. Detection currently relies on
traps baited with a chemical (cue-lure, CL) that is attractive to males of this species.
Earlier research suggested that a chemically similar compound (raspberry ketone
formate, RKF) is more attractive than CL and thus might improve surveillance
efforts. The present study describes the results of field experiments in Hawaii that
compare captures of B. cucurbitae males in traps baited with (1) CL liquid versus
a solid formulation (so-called plugs) of RKF or (2) CL liquid versus RKF liquid.
In the first experiment, the traps with CL liquid captured more males than traps
baited with RKF plugs in three of the four study sites, with no difference observed
between lures at the remaining area. In the second experiment, the traps baited with
CL liquid captured more males than traps baited with RKF liquid at two of the
four study areas, with no difference observed between lures at the remaining two
sites. The discrepancy between earlier studies and the present one highlights the
need for additional field testing of RKF to assess its value as a replacement for CL.
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Tephritidae, fruit fly trapping
Citation
Proceedings of the Hawaiian Entomological Society (2012) 44:63–70
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Attribution-NonCommercial-NoDerivs 3.0 United States
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