The southern house mosquito is an important disease vector worldwide, vectoring such disease agents as West Nile Virus and Wuchereria bancrofti. Associative learning capabilities with respect to appetitive behaviors were recently discovered in this species. This type of learning has interesting implications for disease transmission particularly for those disease agents that rely upon repeated blood-meals to proliferate. The occurrence of associative learning in conjunction with sugar-meals suggests ecological significance and that mosquitoes are not merely opportunistic generalists with respect to sugar sources. Under the associative learning paradigm an unconditioned stimulus, which elicits an unconditioned response, is paired with a conditioned stimulus over repeated trials to the point where the conditioned stimulus elicits the unconditioned response. In this study, the effect of unconditioned stimulus strength was examined by altering the concentration of sucrose used in the training assay. Sucrose solutions of 5, 10 and 50% were used to train mosquitoes to pure vanilla extract or myrcene. It was hypothesized that the higher the sugar concentration the more effective training would be as it was tied to higher quality resource. The effects of sugar concentration, multiple component odor stimulus (vanilla) versus pure odor stimulus (myrcene), and responses of males and females will be discussed.