Literature
Authors(s) Ker, K.W. and M.K. Sears
Year 1986
Title Effectiveness of superior oil applied to apple for control of the San José scale, Quadraspidiotus perniciosus, and the European fruit scale, Quadraspidiotus ostreaeformis (Homoptera: Diaspididae). Proceedings of the Entomological Society of Ontario 117: 45-48.