Use the information below to answer this question. I. Yellowing of leaves II. Raised brown spots on the leaves III. Drying up of leaves IV. Exudation of gum...

Answer Details

The disease of citrus described above is gummosis. This is because one of the symptoms mentioned is the exudation of gum, which is a characteristic symptom of gummosis. Yellowing of leaves, raised brown spots on the leaves, and drying up of leaves are not typically associated with gummosis, but can be symptoms of other citrus diseases. Blight and tristeza are also citrus diseases, but they do not typically cause gum exudation as a symptom.