Kriegler, P.J. 1975 The importance of spraying shortly before and during harvesting for control of mealybugs on table grapes.. Proceedings of the First Congress of the Entomological Society of Southern Africa, Stellenbosch, 1974. Entomological Society of Southern Africa Pretoria, South Africa 273 pp.

Notes: [Original title: Die belangrikheid van bespuitings kort voor en gedurende oestyd vir die bestryding van witluis op tafeldruiwe.] The difficulties met with in biological and chemical control of Planococcus citri (Risso) on grape-vines during the harvesting period in the Hex river valley in the winter rainfall region of the Cape, South Africa, are discussed in relation to the seasonal cycle of the mealybug, long harvesting period under conditions of potentially high infestations, and observations there in March-April 1973-74.