Occurrence of Pyrenophora tritici-repentis in the Andean Countries of South America. H. J. Dubin, Plant Pathologist/Breeder, CIMMYT, Andean Regional Wheat Program, Box 2600, Quito, Ecuador. Plant Dis. 67:1040. Accepted for publication 5 May 1983. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-1040.

Pyrenophora tritici-repentis, the cause of tan spot of wheat, is reported for the first time in Colombia, Ecuador, and Peru.