Gummosis is associated with Citrus fruits. Sap oozing from cracks. Also known as leaf fall, footrot or broom rot. Gummosis is caused by the fungus Phytophthora spp. Soil-born fungus disease. An early symptom of gummosis is sap oozing from small cracks in the infected bark. The tree has a bleeding appearance. Management - spray 0. 1% aurofungin/ Bordeaux mixture. Additional InformationDisease of CitrusCausal organismCitrus canker Xanthomonas compestris bacteriavector is Phyllonistis citrella a leaf miner. DiebackColletotrichum gleosporeodiesGreeningGracillicuts gram-negative bacteria vector is Diaphorina citri a psyllaTristezaCitrus Tristeza virusvector is Toxoptera citricida. ChlorosisInsufficient soil moisture and nutrients. Root rotPhytophthora spp. Pink diseasePellicularia salmonicolorCitrus exocortisViroid.