Root rot of safflower in Queensland
Abstract
reserve, were paired on oatmeal agar with A 1 and A2 mating strains from the U.S.A. (G. Zentmyer) and Australia J.A.G. Irwin (B.H. Pratt). After 5-10 days incubation at 23°C, oospores Queensland Department of Primary Industries, were produced in 109 of the isolates paired with the A 1 Indooroopilly. Qld. 4068. and were designated A2. No isolate produced an oospore Root and stem rot of safflower (Carthamus tinctorius) when paired with the A2. Two isolates failed to produce in Queensland,...