Gong, J.J., Chen, Z.H., & Liu, C.M. 1999 [Investigation on natural enemies of the arrowhead scale (Unaspis yanonensis Kuwana) and their field fluctuations in Fujian].. Wuyi Science Journal 15: 95-99.

Notes: During field investigations on natural enemies of the arrowhead scale [Unaspis yanonensis] in Fujian Province, China, from 1987 to 1998, 6 parasitoids and 5 predators were found. The rates of parasitism of Aphytis yanonensis and Aphytis unaspidia [Aphytis unaspidis], the dominant parasitoid species, reached 64% in mid-July and 24.7% in late July, 15.5% and 5.5% on average in a year, respectively. Cybocephalus nipponicus and Telsimia emarginata were the major predators, with peaks of abundance of larvae during June-September.