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1 June 2015 Lethal Ovitrap Deployment for Aedes aegypti Control: Potential Implications for Non-Target Organisms
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Abstract

In Australia, dengue control combines source reduction with lethal ovitraps to reduce Aedes aegypti populations during outbreaks. Lethal ovitraps are considered a sustainable and environmentally friendly method of controlling container-inhabiting mosquitoes, however, to-date, this claim has not been quantified. This study assesses the potential impact of lethal ovitraps on non-target organisms when used to control Ae. aegypti in tropical Australia. For retention of specimens, we substituted standard sticky ovitraps for lethal ovitraps. We collected 988 Ae. aegypti and 44,132 non-target specimens over 13 months from 16 sites. Although Ae. aegypti comprised only 2.2% of the total collection, they were were the eighth most dominant taxa collected, on the 93rd percentile. Of the non-target organisms, Collembola were the dominant taxa, 44.2%, with 36.8% and 10.5% Diptera and Hymenoptera, respectively. Of the Dipterans, 61% were family Phoridae. Lethal ovitraps were visited by 90 insect or invertebrate families in total. Ovitraps are attractive to Collembola, Phoridae, Sciaridae, Formicidae, and Culicidae, with minimal attraction by Apidae and other commonly monitored non-target organisms. For container-inhabiting mosquitoes, LOs are cost effective operationally, requiring minimal staff resources for placement and retrieval.

Sharron A. Long, Susan P. Jacups, and Scott A. Ritchie "Lethal Ovitrap Deployment for Aedes aegypti Control: Potential Implications for Non-Target Organisms," Journal of Vector Ecology 40(1), 139-145, (1 June 2015). https://doi.org/10.1111/jvec.12142
Received: 22 September 2014; Accepted: 1 December 2014; Published: 1 June 2015
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