Keetch, D.P., & Whitnall, A.B.M. 1972 Ecology of the citrus red mite, Panonychus citri (McGregor), (Acarina: Tetranychidae) in South Africa. 4. The influence of red scale sprays on the population density of P. citri.. Journal of the Entomological Society of Southern Africa 35(2): 253-263.

Notes: In a field trial to evaluate different insecticidal treatments for the control of Aonidiella aurantii (Mask.) on citrus, the effects of the treatments on populations of P. citri and its predator Amblyseius addoensis were observed for two seasons.