6Kwon GiMyon, Han ManJong. Scale insects (Stemorrhyncha) occurred on fruit tlaees in Korea[J]. Korean Journal of Applied Entomology, 2003,42 (4) : 279 - 288.
7J. G. Charles.The settlement of fruit crop arthropod pests and their natural enemies in New Zealand: an historical guide to the future[J]. Biocontrol News and Infuriation, 1998, (19)2:247 - 258.