Antifungal Activity of Tebuconazole to Rhizoctonia cerealis

The fungistasis of tebuconazole to Rhizoctonia cerealis causing wheat eye spot were studied. The result showed that tebuconazole has the highest activity against this pathogen with its average EC500.048 9 μg/mL. The morphology of mycelia and pathogenicity of R. cerealis changed obviously after tebuconazole treatment. Tebuconazole inhibited mycelia growth and led distinctly electrolyte leakage, but it did not inhibit sclerotium germination.