Banana Bunchy Top Virus - Notes on the symptoms of this disease, the conditions that favor its development and preventative control measures. Banana Diseases - Information on the diseases that may affect bananas and their causal agents. Banana Root Borer: Cosmopolites sordidus - Illustrated information on this pest, its distribution, description, life cycle, biology, hosts and management. Black Sigatoka - Information from Wikipedia on this leaf spot disease of bananas caused by Mycosphaerella fijiensis, which can seriously reduce the crop yield. List of Banana and Plantain Diseases - From Wikipedia, a list of the bacterial, fungal and virus diseases and parasitic nematodes which can attack bananas and plantains. Red Palm Mite: Raoiella indica - Information from USDA on this invasive pest of coconut palms and banana plants.