Anonymous, N/A 1931 Dendrol dormant spray oil for control of insects on fruit trees, shade trees and shrubbery.. Technical Division Bulletin No. 141-B: 34 pp.

Notes: Scale species mentioned include San Jose scale, oyster shell scale, scurfy scale, peach cottony scale, euonymus scale, cottony maple scale, tulip tree lecanium, magnolia scale, European elm scale, pine leaf scale, and burr oak kermes; hosts.