Bénassy, C., Mathys, G., Neuffer, G., Milaire, H.G., Bianchi, H., & Guignard, E. 1968 L'utilisation pratique de Prospaltella perniciosi Tow., parasite du pou San José Quadraspidiotus perniciosus Comst. [Practical use for Prospaltella perniciosi Tow., a parasite of the San José scale Quadraspidiotus perniciosus Comst.].. Entomophaga (No. 4): 1-28.

Notes: Research on the acclimatization of P. perniciosi in Germany, France and Switzerland has been reviewed. Recommendations are made with the caveat that they be adapted for other countries.