Bartlett, B.R. 1963 The contact toxicity of some pesticide residues to Hymenopterous parasites and Coccinellid predators.. Journal of Economic Entomology 56(5): 694-698.

Notes: Experiments demonstrate the effects of pesticide on Aonidiella aurantii, Coccus hesperidum, Icerya purchasi and Saissetia oleae along with their parasites.