Cressman, A.W., Broadbent, B.M., & Munger, F. 1954 Control of red scale with parathion.. California Citrograph 39: 379,392,395.

Notes: The location of Aonidiella aurantii on the citrus degree, especially the degree of infestation on different parts, changes with the age of the fruit, the time since the previous treatment and the season. These and other factors are discussed in relation to the application of parathion.