Technical Abstract: Mosquitoes are important vectors of many diseases of medical and veterinary importance. Control of adult mosquitoes is conventionally through application of aerial sprays, however, there are environmental and health concerns associated with these sprays. One approach for targeted control of mosquitoes in the proximity of an emergence site is the use of toxic sugar baits. In this study we examined the toxicity of a range of formulated active ingredients combined in a sugar solution. Efficacy of these compounds are compared between Aedes, Culex and Anopheles mosquitoes.