Salazar Torres, J.C. 1989 . Escamas (Homoptera: Coccoidea) presentes en cuatro frutales de la familia Rosaceae en Zacatlan, Puebla. Chapingo, Mexico 93 pp.

Notes: Title in English: [Scales (Homoptera: Coccoidea) occurring in four fruit species of the Rosaceae family in Zacatlan, Puebla]. Research completed as partial requirement for MS degree, Universidad Autonoma Chapingo, Dept. de Parasitologia Agricola.] Species discussed include Pseudococcus longispinus, P. maritimus, Coccus hesperidum, Lecanium persicae, Aspidiotus nerii, Diaspidiotus ancylus, Hemiberlesia rapax and Quadraspidiotus perniciosus.