Comparison of rain-fast bait stations versus foliar bait sprays for control of oriental fruit fly, Bactrocera dorsalis, in papaya orchards in Hawaii
1University of Hawaii at Manoa, College of Tropical Agriculture and Human Resources, 3050 Maile Way, Honolulu,
HI 96822
2U.S. Pacific Basin Agricultural Research Center, USDA-ARS, P.O. Box 4459, Hilo, HI 96720
3Current address: Lincoln University of Missouri, Cooperative Research and Extension, Allen Hall 212, Jefferson
City, Missouri, 65101
Abstract
Bait stations represent an environmentally friendly attract-and-kill approach to fruit fly population suppression. Recently a novel, visually attractive, rain-fast bait station was developed in Hawaii for potential use against multiple species of pestiferous fruit flies. Here, we compared the efficacy of GF-120 NF Naturalyte Fruit Fly Bait applied either as foliar sprays or onto bait stations in reducing female oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), population density and level of fruit infestation in commercial papaya orchards in Hawaii. Trapping and infestation data were used as indicators of the effectiveness of the two bait application methods. For the first 10 weeks of the study, captures of female B. dorsalis in monitoring traps were significantly greater in control plots than in plots treated with foliar sprays or bait stations. Six weeks after the first bait spray, incidence of infestation (i.e. number of fruit with one or more B. dorsalis larvae) of quarter to half-ripe papaya fruit was reduced by 71.4% and 63.1% for plots with bait stations and foliar sprays, respectively, as compared to control plots. Twelve weeks after first spray, incidence of infestation was reduced by only 54.5% and 45.4% for plots with bait stations and foliar sprays, respectively, as compared to control plots. About 42% less GF-120 was used in orchard plots with bait stations compared to those subject to foliar sprays. The impact of field sanitation on the outcome is also discussed. The results indicate that bait stations can provide a simple, efficient, and economical method of applying insecticidal baits to control fruit flies and a safer alternative to foliar sprays.
Keywords: attract-and-kill, control, IPM, papaya leaf mimic, sanitation, Tephritidae
Abbreviations: PLM, papaya leaf mimic
Correspondence:
apineroj@lincolnU.edu
Associate Editor: JP Michaud was editor of this paper.
Received: 4 August 2009 | Accepted: 30 October 2009 | Published: 20 September 2010
Copyright: This is an open access paper. We use the Creative Commons Attribution 3.0 license that permits unrestricted use, provided that the paper is properly attributed.
ISSN: 1536-2442 | Volume 10, Number 157
Piñero JC, Mau RFL, Vargas RI. 2010. Comparison of rain-fast bait stations versus foliar bait sprays for control of oriental fruit fly, Bactrocera dorsalis, in papaya orchards in Hawaii. Journal of Insect Science 10:157, available online: insectscience.org/10.157
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