O'Dell, J.H. 1931b Road inspection stations: 1930.. Annual report (Arizona Commission of Agriculture and Horticulture) 21st & 22nd: 36-38.

Notes: Red scale, purple scale, greedy scale, black scale, soft brown scale, yellow scale, chaff scale, rose scale, cottony cushion scale, pine leaf scale, ivy scale, hemisphericl scale, hemlock scale, San Jose scale, cactus scale, tamarisk scale (Chionaspis etrusca), cottony cochineal scale, oyster shell scale and mealybugs listed.