de Klerk, C.A. 2016. “Chemical Control of Male Pre-Pupae and Adult Females of Margarodes Prieskaensis (Jakubski) (Coccoidea : Margarodidae) on Grapevines”. South African Journal of Enology and Viticulture 31 (2):160-64. https://doi.org/10.21548/31-2-1413.