Fryer, J.C.S. 1936 Report on insect pests of crops in England and Wales: 1932-1934.. Bulletin of the Ministry of Agriculture and Forestry No. 99: 50 pp.

Notes: Species recorded include Icerya purchasi, Diaspis pentagona, D. leperii, Chrysomphalus aurantii, Dactylopius sp., Orthezia insignis, Pseudococcus gahani, P. citri, P. maritimus, Lecanium hesperidum, L. hemisphaericum, Pulvinaria vitis and P. floccifera.