Sasscer, E.R. 1920 Important foreign insect pests collected on imported nurzery (nursery?) stock in 1919.. Journal of Economic Entomology 13: 181-184.

Notes: Pest species found on imported plants include Aspidiotus transparens, Chionaspis exalbida, C. niger, Howardia biclavis, Lecanium cerasorum, L. kunoensis, L. persicae, Lepidosaphes alba, Parlatoria calianthina, P. pseudaspidiotus, Pulvinaria floccifera, Pseudococcus boninensis, P. comstocki, P. crotonis, P. sacchari, P. virgatus, Selenaspidus pumilis, Targionia bromeliae and T. sacchari.