Survival and spread. Mango malformation Fusarium subglutinans (Note: some debate remains as to complete etiology of this disease.) The cultivar is also resistant to nematodes. Botryodiplodia theobromae Pat., is the causal organism of crown rot disease of banana.This fungus grew and sporulated at 10-40 °C, the optimum being 25-30 °C and the highest mycelial growth (78-90 mm) and sporulation (27-38 conidia/0.01 ml) were observed on PDA. Mucor rot Mucor circinelloides. Basic requirements Bananas grow best in hot and humid climates, require a rainfall of at least 1000 mm (39.4 in) per year to survive and have a high light requirement. Causal organism of this disease is a fungus which has two names, ... Tissue Culture Banana Cultivation Technology ... 49. Causal organism: Botryodiplodia theobromae, Colletotrichum musae, Botryodiplodia theobromae, Fusarium roseum, Verticillium theobromae and Acromonium sp. It commonly infects the developing shoots and leaves. The disease is implicated in the more severe form in the main stalk rot in which splitting of stem occurs. Banana Crown Rot Postharvest Disease. current export bananas. Banana is one of the most important tropical crops and is affected by several fungal diseases, such as crown rot postharvest disease [].Crown rot is responsible for significant losses in banana fruits [1, 2].Predominantly, Colletotrichum musae and Fusarium spp. Due to its inherent resistance to diseases, the variety remains productive for several generations. Internal rot of fruits with dark brown discoloration. The disease is a problem when shipment is done in boxes only and not in bunches. Fungal Disease – Brown spot or Diamond Spot (1) 52. Fungal Disease - Fruit Freckle / Leaf Freckle (1) 51. Both race 1 and race 3 can cause brown rot of potato with similar disease symptoms. cubense (Foc), the causal organism of Fusarium wilt. Symptoms. There was no growth of the organism … Bananas Macrophoma rot Macrophoma mangiferae. It is likewise known to be resistant to crown rot diseases, and Races 1 and 4 of Fusarium oxysporum f. sp. ... Clustering of leaves at crown with a travelers palm appearance, elongated peduncle and half filled hands are its characteristic symptom. Anthracnose causes the wilting, withering, and dying of tissues. Phoma blight Phoma glomerata. F. semitectum is widespread in banana plantations and has been found on dead floral remains at the end of the individual banana fruits and on decaying fruits and floral parts on the ground (Wardlaw, 1972). isolation of the causal organisms associated with the crown rot disease for use in proving Koch’s postulate and the subsequent inoculation of mature Cavendish bananas. Banana plants grow optimally at 27°C (98.6°F) and require a deep soil, rich in organic matter which is well draining and well aerated. Race 1 corresponds to biovars 1, 3, and 4 and includes members of all four phylotypes. Mushroom root rot Armillaria tabescens. The disease is known to occur in all banana-growing states. Fungal disease - Crown Rot (1) 50. This is a result of the peel forming tiny inter-fruit membranes which cause the banana to appear as though it has been sliced before it is peeled. Unknown cause "Segmented Banana" Chilling injury to fruit One of the less common plantain diseases is exostentialis clittellus referred to by most plantain and banana farmers as "segmented banana". & Schrenk, the perfect stage of C. musae, obtained from banana tissues in Honduras were shown to cause crown rot (Kaiser & Lukezic, 1966).