Mauget's Mycoject?? Ultra is an antibiotic with improved solubility using oxytetracycline hydrochloride. It suppresses mycoplasmas, yellow diseases as well as xylem-limiting bacteria such as Xylella fastidiosa (Bacterial Leaf Scorch) and certain bacterial blights. Mycoject?? Ultra is available in both fully enclosed capsules and 1 liter bottles for use in other injection systems.