The document summarizes black tip or necrosis of mango, a disease that affects mango fruits. It occurs in northern Indian states near brick kilns and can affect up to 90% of fruits on a tree. Symptoms appear when fruits are 6-8 weeks old or at the ripening stage, showing blackened, flat tips with soft, rotten inner portions secreting dark brown liquid. The disease is caused by sulfur dioxide, carbon dioxide, and acetylene gases released from brick kilns. Management strategies include spraying borax and ensuring brick kilns are at least 15-18 meters in height and new mango gardens are at least 0.8-1.6 km away to avoid the gases.

1. BLACK TIP OR NECROSIS OF MANGO
DR. RAJBIR SINGH
Assistant Professor
Department of Plant Pathology
Gochar Mahavidyalaya, Rampur Maniharan, Saharanpur (UP), India
Affiliated to Ch. Charan Singh University, Meerut (UP), India
Email:rajbirsingh2810@gmail.com
Cell No. 91-9456613374

2. BLACK TIP OR NECROSIS OF MANGO
•Occurred in UP, Punjab, Bihar and W. Bengal
•Not occurred in South India
•Prevalent near brick links
•Affect till 90% fruits

3. Symptoms
• Appear after 6-8 weeks old
fruits or at ripening stage
• Necrosis on tip of fruits
• Tip become black & flat
• Inner portion of tip become
soft, rottened & secretion of
dark brown liquid

4. Causes of disease
• Caused by SO2, CO2 & Acetylene gases
released from brick links
• Disease is more prevalent near bricks links

5. Disease Management
• Spray Borax @ 3-4 kg/500 lit. water.
I&II Spray – flowering stage
III Spray – fruiting stage
• No brink links should be near garden
• Chimney should be 15-18 Meter height
• Distance of Planting of new garden trees
East West - 1.6 Km
North south – 0.8 Km
• Covering of mango plants with cellophane bags rescue from brick
links smoke.

6. Thank You