The symptoms of mango scab vary depending on the factors such as the part of the plant that is affected, age of tissue, inoculum potential, water and mineral nutrition. Also, only young tissue is prone to infection. Such as that fruit is no longer prone to infection once it reaches about half size. The appearance of symptoms is dependent on the free water availability when the tissue is at susceptible stages. Few of the symptoms can be mistakenly confused with insect injury or infection from other disease like mango anthracnose.