Cross-Resistance in Cercospora beticola to Triphenyltin and Oligomycin. M. Chrysayi- Tokousbalides, Benaki Phytopathological Institute, Kiphissia, Athens, Greece. C. N. Giannopolitis, Benaki Phytopathological Institute, Kiphissia, Athens, Greece. Plant Dis. 65:267-268. Copyright 1981 American Phytopathological Society. DOI: 10.1094/PD-65-267.

Triphenyltin-resistant strains of Cercospora beticola isolated from naturally infected sugar beets were also resistant to oligomycin in vitro. This correlation between resistance to triphenyltin and to oligomycin is independent of benzimidazole resistance. The finding of cross-resistance between triphenyltins and oligomycin suggests a similarity in the mode of action of these compounds and supports the hypothesis of a genetic basis for the development of resistance to triphenyltins.

Keyword(s): carbendazim.