Infectivity and pathogenicity of Ascogregarina culicis (Eugregarinida: Lecudinidae) to Aedes aegypti (Diptera: Culicidae)

The susceptibility of three strains of Aedes aegypti (L.) to four strains of Ascogregarina culicis were studied under laboratory conditions. The parasite was found to be pathogenic to the mosquito; although pathogenicity varied among geographical strains of A. culicis and susceptibility varied among geographical strains of Ae. aegypti. In addition to affecting the survival of the mosquito larvae, infection with the parasite was found to shorten larval development time. Selected strains of A. culicis may be useful as a biological control agent against Ae. aegypti.