Dieffenbachia Leaf Spot. The dieffenbachia or dumbcane is a vigorously growing tropical evergreen plant that is often found in the indoor environment. Dieffenbachia maculata rudolph roehrs credit to david stang the foliage of this variant is fairly small for a dieffenbachia with lengths of around 10 to 12 inches.
Also known as the spotted dumb cane this variety has tropical looking green leaves with vibrant white spots on them. No widely available treatments exist for this plant disease but you can prevent it by keeping temperatures around the plant at 60 to 75 degrees fahrenheit and no cooler. You can grow different types of dieffenbachia for this purpose.
Rooting dieffenbachia plants in water.
Leaf spots appear anywhere leaves are wounded especially at the leaf tips and along breaks in the main vein. Dieffenbachia maculata brown spots. Also known as the spotted dumb cane this variety has tropical looking green leaves with vibrant white spots on them. Myrothecium leaf spot and petiole rot on dieffenbachia.