Induction of benomyl-tolerant mutants from Trichoderma sp. SKT-1 and practicality of mutant SKT-3 in control of rice seedborne diseases. Jpn. J. Phytopathol. 69: 415-419. Mutants of Trichoderma sp. SKT-1 with tolerance to benomyl were easily induced with UV irradiation or nitrosoguanidine. Strain SKT-3 induced by UV irradiation possesses high tolerance to benomyl (MIC 1000ƒÊg/ml). Because it could be re-isolated on benomyl-containing culture media, activity of the strain could be tested in the

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... nvironment, including soil and water systems. SKT-3 had suppressive activities against •gBakanae•h disease and bacterial seedling blight comparable to its parent strain, SKT-1 and was compatible with benomyl-containing fungicides.