Gummy stem blight (GSB) and fusarium wilt (FW) can be common problems for watermelon producers in the Southeast. These two diseases are caused by fungal pathogens from the same taxonomic subphylum, but that is where the similarities end. GSB tends to be more of a foliar pathogen that can move to the petioles and vines, and in extreme cases, the melons. FW is confined to the soil and only affects the plant’s vascular tissue. Because of these differences, the management of these pathogens tends to vary.