Salmonberry (Rubus spectabilis Pursh.) was basally treated in Western Oregon during the dormant season and at bud bursting in April, using a 1:1 mixture of 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), and the same mixture of 2,4-D and 2,4,5-T monobutyl ether glycol esters, and 2,3,6-trichlorobenzoic acid (2,3,6-TBA), in two carriers and with different additives, and with diesel oil alone. January applications gave generally poorer results than those in March and April. March and April applications produced 100% defoliation and kill for all treatments, with only erratic exceptions. Diesel oil alone gave effective control only in April. Sprays containing 2½% active ingredients gave as good results as those containing 5%.