Black tip of mango

⦁ Disease is characterized by necrosis of tissues at distal end of the fruit.
⦁ Atmospheric impurities are responsible for this physiological disorder (SO2,CO2 and acetylene gases released from brick kilns are mostly responsible).
⦁ Symptom is confined to fruits only.
⦁ Appears after 6-8 weeks old fruits or at maturity stage.
⦁ Necrosis at the tip of fruit only.
⦁ Tip become pulpy and develop large dark brown spots which gradually harden.
⦁ Inner portion of tip become soft , rotten and secretion of dark brown liquid occurs .
⦁ Management – Spray Borax @3-4 kg/500.lit water. I &II spray-Flowering stage III spray- Fruiting stage
⦁ Prevention – establish orchards at least 1 km away from brick kilns.