González Rodgriguez, R. 1956a Biología de la "escama de San José" y su control con insecticidas fosforados. [Biology of the "San José scale" and its control with phosphorus insecticides].. Agronomia (Chile) 1(4): 9-13.
Notes: This paper reviews the economic importance, revision of systematics, biology, biological control with natural enemies and chemical control of Quadraspidiotus perniciosus.