Occurrence of green mold disease on Dictyophora rubrovolvata caused by Trichoderma koningiopsis

Dictyophora rubrovolvata is an important edible mushroom that widely cultivated in China. In 2019, a serious rot disease on D. was observed production facility located Ce Heng County, Southwest of Guizhou Province, The causal agent identified as Trichoderma koningiopsis by amplification and sequencing the internal transcribed spacer (ITS) region, translation elongation factor 1-alpha (EF-1?) gene, RNA polymerase II subunit (RPB2) gene followed phylogenetic analysis. Koch’s postulates were confirmed pathogenicity test conducted with healthy rubrovolvata, including re-isolation identification. To our knowledge, this worldwide first report T. pathogen causing green mold disease.