Salazar Torres, J.C., & Solis Aguilar, J.F. 1990 Escamas (Homoptera: Coccoidea) presentes en cuatro especies frutales de la familia Rosaceae en Zacatlan, Puebla. [Scale insects (Homoptera: Coccoidea) present on four species of fruit trees of the family Rosaceae in Zacatlan, Puebla.]. Revista Chapingo 15(67-68): 135-137.

Notes: Abstract: Survey shows eight scale species from apples, pears, plums and peaches: Pseudococcus longispinus, P. maritimus, Coccus hesperidum, Lecanium persicae, Aspidiotus nerii, Diaspidiotus ancylus, Hemiberlesia rapax and Quadraspidiotus perniciosus; natural enemies and effect of rain on populations observed.