Hannah M Rivedal, Todd N Temple, William Thomas, Cynthia Ocamb, Cassandra Funke, Victoria Skillman, Gordon Jones, Govinda Shrestha, Achala Kc, Jeremiah K S Dung, Kenneth Frost
Hemp (Cannabis sativa L.) is grown for cannabinoid oil production in Oregon. During the 2021 and 2022 growing seasons, plants with leaf curling, puckering, chlorotic mosaic, fasciation, and vein clearing were observed in disease surveys of Oregon hemp fields (Fig. 1). Symptoms were present on 1-10% of 2-4-month-old plants in fields located in Benton, Clackamas, Deschutes, Jackson, Josephine, Lane, Linn, Marion, Morrow, and Polk counties between July and September. Leaf and stem samples were collected from 38 symptomatic plants...
September 8, 2023: Plant Disease