Attractive toxic sugar baits: Control of mosquitoes with the low-risk active ingredient dinotefuran and potential impacts on nontarget organisms in Morocco

Khalid Khallaayoune, Whitney A. Qualls, Edita E. Revay, Sandra A. Allan, Kristopher L. Arheart, Vasiliy D. Kravchenko, Rui De Xue, Yosef Schlein, John C. Beier, Günter C. Müller

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

We evaluated the efficacy of attractive toxic sugar baits (ATSB) in the laboratory and field with the low-risk active ingredient dinotefuran against mosquito populations. Preliminary laboratory assays indicated that dinotefuran in solution with the sugar baits was ingested and resulted in high mortality of female Culex quinquefasciatus Say and Aedes aegypti Linnaeus. Field studies demonstrated >70% reduction of mosquito populations at 3 wk post-ATSB application. Nontarget feeding of seven insect orders - Hymenoptera, Lepidoptera, Coleoptera, Diptera, Hemiptera, Orthoptera, and Neuroptera - was evaluated in the field after application of attractive sugar baits (ASB) on vegetation by dissecting the guts and searching for food dye with a dissecting microscope. Nontargets were found stained with ASB 0.9% of the time when the application was applied on green nonflowering vegetation. Only two families were significantly impacted by the ASB application: Culicidae (mosquitoes) and Chironomidae (nonbiting midges) of the order Diptera. Pollinators of the other insect orders were not significantly impacted. No mortality was observed in the laboratory studies with predatory nontargets, wolf spiders or ground beetles, after feeding for 3 d on mosquitoes engorged on ATSB applied to vegetation. Overall, this novel control strategy had little impact on nontarget organisms, including pollinators and beneficial insects, and was effective at controlling mosquito populations, further supporting the development of ATSB for commercial use.

Original languageEnglish (US)
Pages (from-to)1040-1045
Number of pages6
JournalEnvironmental Entomology
Volume42
Issue number5
DOIs
StatePublished - Oct 1 2013

Keywords

  • Beneficial insect
  • Environmental impact
  • Integrated vector control
  • mosquito
  • Pollinator

ASJC Scopus subject areas

  • Insect Science
  • Ecology, Evolution, Behavior and Systematics
  • Ecology

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    Khallaayoune, K., Qualls, W. A., Revay, E. E., Allan, S. A., Arheart, K. L., Kravchenko, V. D., Xue, R. D., Schlein, Y., Beier, J. C., & Müller, G. C. (2013). Attractive toxic sugar baits: Control of mosquitoes with the low-risk active ingredient dinotefuran and potential impacts on nontarget organisms in Morocco. Environmental Entomology, 42(5), 1040-1045. https://doi.org/10.1603/EN13119