Disease problems can be devastating for organic market growers in the south, and management of plant health starts with careful attention to soil characteristics, amendments and rotations. Dr. Little will discuss organic management principles for major disease problems, including soil borne diseases and root knot nematodes, in both high tunnels and in the field. Dr. Cassity-Duffey will provide information on how to manage soils to improve plant health and lessen the impacts of disease.