Three Simple Devices for Preventing Development of Aedes aegypti Larvae in Water Jars

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  • Department of Biology, Faculty of Science, Mahidol University, Department of Medical Entomology, U.S. Army Medical Component, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand

We developed three types of covers that are easily fabricated from plastic screen locally manufactured in Thailand. The covers were designed to permit normal use of water jars for drinking, utility water uses, and water storage. Tests of the covers in the laboratory and field demonstrated that they could completely prevent successful development of Aedes aegypti (L.) in water jars. Initial experience in a village setting demonstrated that these devices were readily manufactured and used in a community-based program. Village residents adapted the covers to local patterns of water use, collecting rainwater through the screen and adjusting cover use to water depth.

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