Other Plant Disease -- Argentina
In April 2015, lesions typical of orange rust were observed in a commercial sugarcane field in Misiones province on a non-identified cultivar (a complex hybrid of _Saccharum_ spp). Symptoms on leaves differed from those of brown rust of sugarcane (_P. melanocephala_), commonly observed in the region.
Leaf samples were analyzed. Uredinia and urediniospore were similar morphologically to those described for the fungus _Puccinia kuehnii_, causal agent of sugarcane orange rust. Uredinial
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