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Attracting dark-eyed fruit flies, drosophila repleta (diptera: drosophilidae), in swine facilities using color and odor

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Title: Attracting dark-eyed fruit flies, drosophila repleta (diptera: drosophilidae), in swine facilities using color and odor
Author(s): Hottel, Benjamin A.
Advisor(s): Ratcliffe, Susan T.
Department / Program: Entomology
Discipline: Entomology
Degree Granting Institution: University of Illinois at Urbana-Champaign
Degree: M.S.
Genre: Thesis
Subject(s): Drosophila repleta color attraction volatile attraction mass trapping
Abstract: Color and volatile preferences of Drosophila repleta were tested using sticky card and bottle traps. Species identity of D. repleta was confirmed using morphological characters; DNA COI sequence comparisons were inconclusive. Attraction to primary and secondary colors was tested with sticky cards in the laboratory; only primary colors were tested in the field. Laboratory trials were performed in clear plastic chambers. Other sticky card combinations included white, black, and grey. A white card with a black border was tested to examine contrast effects. Field trials were carried out at the University of Illinois Imported Swine Facility. Pinot Noir red wine, apple cider vinegar, and wet swine feed (the on-site material fed on by the flies) were used in volatile preference field trials. While there appeared to be some color preference in laboratory trials, field color trials failed to replicate laboratory results. Red wine was extremely attractive to D. repleta, but there were no differences in response to colors when tested in combination with a red wine volatile lure (P>0.05). It appears that odor plays a dominant role in attracting D. repleta, whereas color is less important.
Issue Date: 2011-05-25
Rights Information: Copyright 2011 Benjamin A. Hottel
Date Available in IDEALS: 2011-05-25
Date Deposited: 2011-05

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