Short- and long-term control of Vespula pensylvanica in Hawaii by fipronil baiting

Pest Management Science
By: , and 



BACKGROUND: The invasive western yellowjacket wasp, Vespula pensylvanica (Saussure), has significantly impacted the ecological integrity and human welfare of Hawaii. The goals of the present study were (1) to evaluate the immediate and long-term efficacy of a 0.1% fipronil chicken bait on V. pensylvanica populations in Hawaii Volcanoes National Park, (2) to quantify gains in efficacy using the attractant heptyl butyrate in the bait stations and (3) to measure the benefits of this approach for minimizing non-target impacts to other arthropods. RESULTS: The 0.1% fipronil chicken bait reduced the abundance of V. pensylvanica by 95 ± 1.2% during the 3 months following treatment and maintained a population reduction of 60.9 ± 3.1% a year after treatment in the fipronil-treated sites when compared with chicken-only sites. The addition of heptyl butyrate to the bait stations significantly increased V. pensylvanica forager visitation and bait take and significantly reduced the non-target impacts of fipronil baiting. CONCLUSION: In this study, 0.1% fipronil chicken bait with the addition of heptyl butyrate was found to be an extremely effective large-scale management strategy and provided the first evidence of a wasp suppression program impacting Vepsula populations a year after treatment. Copyright © 2011 Society of Chemical Industry

Study Area

Publication type Article
Publication Subtype Journal Article
Title Short- and long-term control of Vespula pensylvanica in Hawaii by fipronil baiting
Series title Pest Management Science
DOI 10.1002/ps.3262
Volume 68
Issue 7
Year Published 2012
Language English
Publisher Wiley
Contributing office(s) Pacific Island Ecosystems Research Center
Description 8 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Pest Management Science
First page 1026
Last page 1033
Country United States
Other Geospatial Hawai`i Volcanoes National Park
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