Ping, Y.M., & Zeng, B.L. 2001 [The occurrence of citrus root powdery scale and its control.]. South China Fruits 30(3): 27.

Notes: In recent years, citrus root powdery scale [Cribrolecanium andersoni] has become an important pest in the Nanfeng county, in Jiangxi, China. This pest has 3-4 generations a year, and it usually overwinters in the upper soil layer. The peak period of its occurrence is in early May. Its nymphs and adults usually concentrate on the fibrous roots of the tree and suck the sap, resulting in the damage of the root cortex, abscission of upper flowers and fruitlets, and production of smaller leaves with light green colour. Soil application of 78.5% Tamaron [methamidophos] or 92.3% Furadan [carbofuran] was appropriate for its control.