Bénassy, C. 1971 La lutte biologique et son application pratique en arboriculture fruitière. [Biological control and its practical application in fruit trees culture].. La Pomologie Française 13(1): 9-23.
Notes: Scale species discussed include Aonidiella aurantii, Aspdiotus citrinus, A. hederae, Chrysomphalus dictyospermi, Icerya purchasi, Quadraspidiotus perniciosus and Saissetia oleae and their agents of biological control.