Spollen, K.M., & Hoy, M.A. 1993a Residual toxicity of five citrus pesticides to a carbaryl-resistant and a wild strain of the California red scale parasite Aphytis melinus DeBach (Hymenoptera: Aphelinidae).. Journal of Economic Entomology 86: 195-204.

Notes: Practical aspects of releasing the most carbaryl-resistant strain of A. melinus against Aonidiella aurantii discussed.