Wanjala, F.M.E., Kinuthia, M.W., Mwangi, S.N., & Dooso, B.S. 1986 Incidence of Icerya pattersoni Newst. in Kenya.. Tropical Pest Management 32: 169-170.

Notes: This new scale pest in the Kenyan coffee agroecosystem is probably indigenous rather than introduced. Icerya sulfurea var. pattersoni is mentioned as a synonym. Aspidiotus is also mentioned as a scales pest of coffee. Damage is described and location on the plant is discussed.