Yust, H.R., Busbey, R.L., & Nelson, H.D. 1942 Reaction of resistant and nonresistant strains of California red scale to fumigation with HCN.. Journal of Economic Entomology 35(6): 816-820.

Notes: The effect of pretreatment, treatment, and post-treatment temperatures, and prefumigation with sublethal dosages on the susceptibility of resistant and nonresistant strains of the California red scale, Aonidiella aurantii, to fumigation with hydrocyanic acid was studied under controlled conditions.