Georgala, M.B. 1984 Analysis of the requirements for red scale control.. Citrus & Subtropical Fruit Journal 606: 13-4, 16-18.

Notes: The red scale Aonidiella aurantii is a key pest in the general pest complex affecting citrus in South Africa. Topics considered are toleration of scale on a new crop in mid and late summer, presence of resistance to organophosphates, emergency and maintenance control programmes, efficacy of treatments against scale on different parts of the tree and application of scale treatments.