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Title: Attractiveness of Methyl Eugenol–Baited Traps to Oriental Fruit Fly (Diptera: Tephritidae): Effects of Dosage, Placement, and Color 
Author: Howarth, Vanessa M C; Howarth, Francis G
Date: 2000-05
Publisher: Hawaiian Entomological Society
Citation: Howarth VMC, Howarth FG. 2000. Attractiveness of methyl eugenol–baited traps to oriental fruit fly (Diptera: Tephritidae): effects of dosage, placement, and color. Proc Hawaiian Entomol Soc 34:167–178.
Abstract: The attractiveness of methyl eugenol-baited traps to the oriental fruit fly, Bactrocera dorsalis (Hendel), was tested under different conditions; i.e., trap placement, color, and methyl eugenol dosage. The mean number of flies caught in hanging traps, 1–2 m above the ground (255), was not significantly different from the mean number in uncovered leaf litter traps (264), but was significantly greater than the number of flies in the covered leaf litter traps (85). Hanging and leaf litter traps interfered
with each other when placed 2–3 m apart, but not when they were over 10 m apart. The mean numbers of oriental fruit flies caught in traps baited with 0, 2, 10 and 20 drops of
methyl eugenol were significantly different, the numbers of flies increasing with increasing dose. In color preference studies, the mean number of flies captured in the clear traps was significantly greater than the numbers caught in the yellow, red, blue, or green traps. These results indicate that males have a strong aversion to entering shaded or dark traps. Clear traps placed in exposed sites should improve trap efficiency in both control and monitoring programs.
Pages/Duration: 12 pages
ISSN: 0073-134X
URI: http://hdl.handle.net/10125/8647
Keywords: Bactrocera dorsalis, color preference, fruit flies, Hawaii, insect attractants, insect control, insect traps, males, methyl eugenol, nontarget organisms, shade, spatial distribution, trapping

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