Gentner, L.G., & Norris, R.K. 1933 Dormant sprays and their use for the control of insect pests of fruit trees in Rogue River Valley.. Station Bulletin (Agricultural Experiment Station, Oregon State Agricultural College) 321: 7-55.

Notes: One section covers the control of San José scale on pears, Aspidiotus perniciosus, by means of dormant sprays.