Wraight, S.P., Molloy, D.P., McCoy, P., 1982. A Comparison of Laboratory and Field Tests of Bacillus sphaericus Strain 1593 and Bacillus thuringiensis var. israelensis Against Aedes stimulans Larvae. The Canadian Entomologist 114, 55-61. doi:10.4039/Ent11455-1

Wraight, S.P., Molloy, D.P., Jamnback, H., 1981. Efficacy of Bacillus sphaericus Strain 1593 Against the Four Instars of Laboratory Reared and Field Collected Culex pipiens and Laboratory Reared Culex salinarius. The Canadian Entomologist 113, 379-386. doi:10.4039/Ent113379-5