Ruellia simplex plant is grown for its aesthetic features including flowers, leaves and overall foliage appearance. The fig wax scale Ceroplastes rusci L. (Homoptra: Coccidae) was detected for the first time in Egypt on R. simplex. Mineral oil, diazinon, thiamethoxam + chlorantraniliprole, and essential oils extracted from both Acorus calamus and Petroselinum crispum were compared for their ability to control the insect. Results indicated that reduction percentage increased gradually until day 7 after the treatment regarding adults, nymphs and their total. The maximum efficacy of the mineral oil, thiamethoxam + chlorantraniliprole, respectively, was noticed after 21 days, followed by A. calamus. Efficacy of P. crispum oil and diazinon reached more than 86% after 21 days and more than 90% after 28 days. At 28 days, A. calamus reached its maximum efficacy. Plants treated with thiamethxam+ chlorantraniliprole were the tallest plants and possessed significantly higher number of branches and leaves, and leaf pigments followed by those treated with mineral oil or A. calamus. A. calamus and thiamethxam+ chlorantraniliprole were proved as promising compounds tested for the first time in controlling C. rusci.