Abstract
Laboratory inoculations of native Australian and New Zealand Rubus spp. showed that R. gunnianus (subgenus Dalibarda) from Tasmania and R. schmidelioides and R. cissoides (subgenus Lampobatus) from New Zealand were moderately susceptible to the European blackberry rust fungus Phragmidium violaceum. Although the rust infected all species of subgenus Lampobatus tested. R. australis. R. parvus. R. squarrosus and R. moorei were more resistant and unlikely to be adversely affected when the rust reaches their area of distribution.