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Notes: [Proceedings of an AAAS Symposium on Biological Control, held at Boston, Massachusetts December 30-31, 1969.] Pest species mentioned as objects of biological control include Aonidiella aurantii, A. citrina, Aspidiotus destructor, Icerya purchasi, Lepidosaphes beckii, Parlatoria oleae, Pseudococcus gahani, Quadraspidiotus perniciosus, Saissetia nigra and S. oleae.