Bénassy, C. 1969a [Biological control against the San José scale: research conducted by the working group of the OILB on the San José scale.]. Rapport de la Conférence international OEPP/OILB sur le pou de San José. Series A, No. 48. Organisation Européene et Méditerranéene pour la Protection des Plantes (OEMPP) Paris 111 pp.

Notes: [Original title: La lutte biologique contre le pou de San José: Travaux menés par le Groupe de travail de l'OILB sur le pou de San José. Sponsoring organization also called European and Mediterranean Plant Protection Organization (EMPPO). Conference held in Milan, Verona, 24-26 June 1968.] Developments in Germany, France and Switzerland in San José scale control with Prospaltella perniciosi are discussed.