Samways, M.J. 1986 Combined effect of natural enemies (Hymenoptera: Aphelinidae & Coleoptera: Coccinellidae) with different niche breadths in reducing high populations of red scale, Aonidiella aurantii (Maskell) (Hemiptera: Diaspididae).. Bulletin of Entomological Research 76: 671-683.

Notes: Populations of this scale studied on orange trees in South Africa; combination treatment with oil also evaluated.