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Title: Capture of Bactrocera Males (Diptera: Tephritidae) in Parapheromone-Baited Traps: A Comparison of Liquid versus Solid Formulations 
Author: Shelly, Tood E.
Date: 2010-12
Publisher: Hawaiian Entomological Society
Citation: Proceedings of the hawaiian entomological society (2010) 42:1–8
Abstract: Bactrocera cucurbitae (Coquillett) and B. dorsalis (Hendel) (Diptera: Teph-
ritidae) are important agricultural pests of the Pacific region. Detection and control of these species rely largely on traps baited with male-specific attractants (parapheromones), namely cue lure for B. cucurbitae and methyl eugenol for B. dorsalis. Presently, these lures (plus naled, an insecticide) are applied in liquid form, although this procedure is time-consuming, and naled as well as methyl eugenol may pose human
health risks. Recently, a solid formulation (termed a wafer) has been developed that contains both chemicals (plus DDVP, an insecticide), and here we present data from field tests that compare the effectiveness of liquid versus solid formulations of the lures in attracting males of these two Bactrocera species. Trapping in two areas of Oahu, Hawaii, yielded consistent results: Jackson traps baited with wafers captured (1) similar
numbers of B. cucurbitae males and (2) significantly greater numbers of B. dorsalis males than Jackson traps baited with standard liquid lures. Additional tests examined the effect of ageing on the attractiveness of the wafers and revealed that Jackson traps baited with wafers aged for 6 or 8 weeks captured similar or significantly more males of both Bactrocera species than Jackson traps baited with fresh liquid lures.
ISSN: 0073-134X
Keywords: Tephritidae, detection, male annihilation, trapping

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