Evaluation of Industrial Hemp Seed Treatments for Management of Damping-Off for Enhanced Stand Establishment

The purpose of this research was to collect efficacy data on biological, biochemical, and chemical fungicide seed treatments hemp (Cannabis sativa L.) mitigate damping-off enhance field stand establishment. Seed were evaluated in fields New York (NY), North Dakota (ND), Virginia (VA) at two planting dates each state 2020. A single lot a dual-purpose (fiber + grain) cultivar (‘Anka’) treated using laboratory-scale rotary pan coater. Five four tested. laboratory germination test revealed that did not exhibit phytotoxicity when compared the non-treated control. bioassay with naturally infested soil used assess preliminary activity for protection against damping-off. biochemical treatment Ultim® (active ingredient; organic copper) performed as well Apron XL® Maxim® 4FS Mertect® 340F preventing whereas biological differ from control terms disease incidence. In all tests, improve plant stands Biochemical Prudent 44® Nutrol® phosphite) Ultim®, along treatments, had acceptable improved establishment across locations. Based results trials, copper has potential both conventional production.