Biological control of the invasive plant Tradescantia fluminensis with the fungus Kordyana brasiliensis in Australia: Host range and initial releases

•The leaf-smut fungus K. brasiliensis only caused lesions on T. fluminensis.•The fungus caused flecks on 5 of the 28 non-target plant taxa tested.•Abundant lesions were detected on T. fluminensis within 2 months of release in NSW.•A few lesions were only detected at 5 months after release in Victoria.•Decline in T. fluminensis cover was recorded in NSW at 32 months after release.