dracaena info which may be helpful.
Fusarium leaf spot on Sansevieria
Pathogen - Fusarium moniliforme
Symptoms - Spots start as tiny water-soaked areas on immature leaves which rapidly enlarge into elliptical-to-irregular-shaped areas with a red or tan coloration. They are often surrounded by a bright yellow margin which can be 1/8-inch wide. As spots merge, immature leaves become distorted. Under optimal conditions, meristems of infected shoots die.
Control - Standing water in the central whorl of the plant is necessary for infection to occur. The high levels of water available during the rooting process are optimal for disease initiation and progress in cuttings. Complete disease control can be achieved if plant foliage is kept dry.
Dracaenas are also susceptible to this pathogen. Chlorothalonil (Daconil 2787) has been especially effective in controlling Fusarium leaf spot experimentally. Check labels for legal plants, intervals, and rates.
