Dreistadt, S.H. 1996 Citricola scale (Homoptera: Coccidae) abundance on Chinese hackberry and scale control with spray oil or acephate trunk implants.. Journal of Economic Entomology 89: 481-487.

Notes: Coccus pseudomagnoliarum was studied infesting Celtis sinensis; female scale and crawler densities on untreated trees increased each year; Parthenolecanium corni, P. pruinosum and Eulecanium cerasorum also infest Chinese hackberry, but citricola scale was 5-25 times more abundant than the Parthenolecanium species combined, and no calico scale were found on sample branches; chemical control methods evaluated.