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Notes: This paper reviews the most important phytophagous arthropods of citrus in Sicily. Most chemicals are sufficient to reduce damage to below the economic threshold, nevertheless, biological control is recommended when possible, such as utilizing Prays citri for Planococcus citri. Other scale species listed include Aonidiella aurantii, Aspidiotus hederae, Ceroplastes rusci, C. sinensis, Chrysomphalus dictyospermi, Coccus hesperidum, Lepidosaphes beckii, L. gloverii, Parlatoria pergandii, P. zizyphi, Pericerya purchasi, Planococcus citri and Pseudococcus adonidum.