Biting time of Aedes albopictus in the rubber plantation and the orchard, The Southernmost of Thailand
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2011-01-25
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Journal of the Vector - Borne Diseases
Abstract
The objective of this study was to describe the biting time of Aedes albopictus in the rubber plantations and the orchards. It was performed in epidemic areas of Chikungunya of Songkhla and Satun Province in June and August 2009. Mosquitoes were induced by human bait. Two volunteers collected mosquitoes by sweep nets during 06.00 am to 06.00 pm. then caught mosquitoes were kept for species identification. The results revealed that 110 female mosquitoes with rate of 4.58 per man-hour were caught in the rubber plantation while 172 female mosquitoes with rate of 7.17 per man-hour were caught in the orchard. The biting rate of Ae. albopictus in the rubber plantation showed 2 peaks, the first peak was at the sun rise and the second main peak was at before sun set while in the orchard, the biting rate was high and reached the peak during 06.00-11.00 am. The biting rates in the rubber plantation and in the orchard were the lowest during 12.00-01.00 pm. However, biting behavior of female mosquitoes may be influenced by daily human activities and also temperature in their environment.Key words : Biting time, Aedes albopictus, Rubber Plantations, Orchards
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Journal of the Vector - Borne Diseases; Vol. 6 No. 2 July - December 2009; 1-6