Residual Effectiveness of λ-Cyhalothrin Harbourage Sprays Against Foliage-Resting Mosquitoes in North Queensland

Odwell M. Muzari; Rebecca Adamczyk; Joseph Davis; Scott Ritchie; Gregor Devine

doi:10.1603/ME13141

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1 March 2014 Residual Effectiveness of λ-Cyhalothrin Harbourage Sprays Against Foliage-Resting Mosquitoes in North Queensland

Odwell M. Muzari, Rebecca Adamczyk, Joseph Davis, Scott Ritchie, Gregor Devine

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J. of Medical Entomology, 51(2):444-449 (2014). https://doi.org/10.1603/ME13141

Abstract

The residual efficacy of λ-cyhalothrin sprayed on foliage was evaluated against various mosquito species in sections of forest in Cairns, Queensland, Australia. Weekly sweep-net collections in treated and untreated areas before and after spraying showed 87–100% reductions in mosquito numbers for the first 9 wk postspray. After that period, reductions fluctuated but remained >71% up to 14 wk posttreatment. Mosquito mortality ranged from 96 to 100% in contact bioassays of treated leaves during the 14 wk study. Our results demonstrate that spraying harborage vegetation with λ-cyhalothrin is an extremely effective strategy for the control of sylvan and peridomestic mosquito species in tropical north Queensland.

Citation Download Citation

Odwell M. Muzari, Rebecca Adamczyk, Joseph Davis, Scott Ritchie, and Gregor Devine "Residual Effectiveness of λ-Cyhalothrin Harbourage Sprays Against Foliage-Resting Mosquitoes in North Queensland," Journal of Medical Entomology 51(2), 444-449, (1 March 2014). https://doi.org/10.1603/ME13141

Received: 15 July 2013; Accepted: 1 December 2013; Published: 1 March 2014

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