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

© 2014 Entomological Society of America
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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