Informational table showing disease name, symptoms, pathogen/cause, and management of Baptisia diseases. Disease Symptoms Pathogen/Cause Management Cylindrocladium stem rot Stems and lower leaves become very dark brown to black. Cylindrocladium This disease occurs during propagation of plants from cuttings. When affected cuttings are placed on a wet paper towel in a plastic bag for a few days, many light colored spores form on the infected tissue. Use pathogen-free rooting soil. Take cuttings from healthy plants. Leaf spots Dark brown spots spread to engulf the entire leaf. Cercospora, Marssonina, Septoria, Stagonospora Avoid sprinkler irrigation. Powdery mildew White fungal growth develops on the surface of leaves. Erysiphe or Micosphaera No control is available. Rhizoctonia stem rot Dark dead areas develop on the stems. Rhizoctonia This disease occurs during cutting propagation. When affected cuttings are placed on a wet paper towel in a plastic bag for a few days, web-like strands of fungal growth extends from the infected tissue to the towel surface. Use pathogen-free rooting soil. Take cuttings from healthy plants. Rust Reddish brown dusty spores form on the leaves. Puccinia andropogonis This fungus also infects Oxalis, Penstemon, Mumulus, lupines, Baptisia, and Aesculus.