Ovitrap
An ovitrap is a device which consists of a black cylinder with a piece of cardboard submerged into the water in the cup. Ovitraps mimic the preferred breeding site for container breeding mosquitoes, including Aedes albopictus and Aedes aegypti.
The Ovitrap was first described in 1966[1] and was initially designed for monitoring Aedes populations. Researchers found that if they provided artificial breeding sites, they could easily collect and study the eggs found in the container. Since the original ovitrap was invented, lethal ovitraps have been developed, which kill the larvae and/or the adult mosquitoes that enter.
Ovitraps used for monitoring can detect Aedes mosquito populations thus acting as an early warning signal to preempt any impending dengue outbreaks.[2] Analysis can be done on the ovitrap breeding data collected weekly to identify mosquito breeding hotspots and risk areas when there is a danger of high Aedes infestation. This analysis is used to plan vector surveillance and control operations.
The extensive use of the ovitrap in a community can be used in Aedes population control and effectively reduce the Aedes population in that area. It has been used in countries like Singapore, United States and Hong Kong since the 1970s.
References
- ↑ Reiter, P., M. A. Amador, R. A. Anderson, and G. G. Clark. 1995. Short report: dispersal of Aedes aegypti in an urban area after blood feeding as demonstrated by rubidium-marked eggs. American Journal of Tropical Medicine and Hygiene 52: 177-179.
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