Schlabritsky, E. 1955a Prospaltella perniciosi Tower - ein Beitrag zue biologischen Bekämpfung. [Prospaltella perniciosi Tower, a contribution to biological control.]. Mitteilungen der Biologischen Bundesanstalt 85: 53-55.

Notes: Biological and life cycle information as well as biological control of San José insect (Quadraspidiotus perniciosus) is provided.