Evaluation of Conventional Fungicides for Control of Southern Blight of Sunchoke in South Carolina, 2024

Southern blight of sunchoke ( Helianthus tuberosus) is caused by the soilborne fungus Agroathelia rolfsii. Symptoms and signs include wilting, stem lesions, white mycelium and brown sclerotia at the base of the plant, and plant death. This study evaluated the efficacy of three conventional fungicides to prevent and treat southern blight on sunchoke. The trial was conducted in 2024 in Charleston, SC, on sunchoke (or Jerusalem artichoke). The results will help growers choose fungicides to manage this disease.