Walton, V., and K. Pringle. “Vine Mealybug, Planococcus Ficus (Signoret) (Hemiptera: Pseudococcidae ), a Key Pest in South African Vineyards. A Review”. South African Journal of Enology and Viticulture, vol. 25, no. 2, May 2017, pp. 54-62, doi:10.21548/25-2-2140.