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stem end rot of mango causal organism

By on Dec 1, 2020 in Uncategorized |

Abstract – Mango (Mangifera indica L.) fruit rot caused by anthracnose is the most economically important postharvest disease limiting shelf life and export of fresh mango fruits in Nigeria. Stem end rot majorly contribute in post-harvest losses of mango during storage. Approximately 25-30% loss of total mango production in Bangladesh 3, 15-20% in India and 30-60% in the world 5 is due to anthracnose and stem end rot diseases. The stem end rot can be minimized by pre-harvest spray of Carbendazim or Thiophanate methyl (0.1%) 15 days prior to fruit harvest. Stem end rot. [=M. Soft rot –aid of pectinolytic & cellulolytic enzymes. Causal Organism of Stem-Rot of Jute: The stem rot of Jute disease is caused by the fungus: Macrophomina phaseolina (Tassi) Goid. Stem end rot (Botryosphaeria spp., Lasiodiplodia theobromae and other fungi) is a soft, watery rot that develops from the stem end as fruit ripens after harvest. are generally the main cause of stem end rot of mango. The stem end rot pathogens of mango (Mangifera indica), (Dothiorella dominicana, Dothiorella mangiferae, Lasiodiplodia theobromae (Syn. “De-sapping” (placing the stem end of newly harvested fruit into the soil or turf beneath trees) should be avoided since infec- This study; investigated the etiology, disease incidence and disease severity of mango fruit anthracnose in These are blossom blight, and the postharvest diseases, soft brown rot and stem-end rot. Butler. The chemical fludioxonil is currently permitted for the management of stem end rot in mangoes. Post-harvest management. 3. Disease/ Pest of Mango : Diplodia stem – end rot Causal Organism : Diplodia natalensis Symptom: Epicarp darkens around the base - pedicel. However, several infectious diseases caused by many phytopathogens are deteriorating mango quality and quantity. Ashby] whose sclorotia phase is known as Rhizoctonia bataticola (Taub.) Diplodia natalensis … Diplodia Stem-end Rot (Lasiodiplodia theobromae ): The fungus enters through mechanically injured areas on the stem or skin. Circular, black patch which under humid atmosphere. In South Africa it is the causal organism of several diseases occurring in mango. Postharvest dip of fruits in Carbendazirn (0.1%) in hot water at 52 Stem end rots caused by Ladiodiplodia theobromae, Dothiorella spp., Phomopsis mangiferae and other fungi are serious postharvest diseases of tropical and sub-tropical fruit including mango, avocado, citrus, mangosteen and carambola. Fruit should be harvested with stalk (5 cm), if not, the opening must be sealed with wax. Stem-end rot is caused by many of the same fungi that cause mango decline, in par-ticular C gleosporiodes, Dothiorella spp. Mango, Mangifera indica L., is known to be the king of all fruits due to its delicious taste, marvelous fragrance, and beautiful appearance. Colletotrichum species cause anthracnose, which can cause considerable damage in a large number of crops, such as … phaseoli (Maubl.) In Australia, Dothiorella spp. The fungus grows from the pedicel into a circular black lesion around the pedicel. Application of Copper sulphate (500 g t -1 ) in soil around the tree trunk is also found effective in reducing gummosis. The permit specifies three use rates. and L. theobromae. The major diseases are stem end rot, black mould rot, soft rots, alternaria rot, dry rot, black spot, brown spot, phomispsis rot, bacterial soft rot and bacterial rot. Control: Careful handling to minimize mechanical injuries. It is thought that N. mangiferae infects the inflorescence at an early stage during flowering. Mango tree and fruit have been affected by about 83 diseases reported worldwide, and in Pakistan, 27 diseases are recognized as more important. More portions of fruit turns black and soften. 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