1. Disorders in Mango
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2. Mango disorders Fruit Drop Malformation Black Tip
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3. Vegetative malformation
Floral malformation
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4. Vegetative malformation
The vegetative malformation generally affects seedlings of  young plants in which there is a swelling of buds.
Distorted leaf bud
It leads to formation of small cluster with short internodes at the apical portion and give an appearance of witches broom like structure.
Normal leaf bud
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5. Floral malformation
Malformed panicles have bigger florets than normal florets and contain mostly male flowers.
Distorted florets
Normal floret
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6. Floral malformation Symptoms Distorted panicles and florets Short axis
Thick rachis
Cluster like inflorescence
Floral malformation
Dwarfed leaf growth
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7. Floral malformation Management practices
Remove the malformed panicles as they appear on the tree
Spray 200 ppm of NAA once in October.
Floral malformation
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8. Fruit drop Fruit drop is natural in mango.
But, some times the fruit drop will be very heavy, even up to 99%, at various stages of fruit growth.
The intensity of fruit drop varies from variety to variety.
Among the commercially grown varieties, Langra is more susceptible to drop, while Dasheri is the least.
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9. Fruit drop
The fruit drop is more or less a continuous process and can be classified into three phases, viz. (i) pinhead drop, (ii) post-setting drop and (iii) May-month drop.
The fruit drop in first two phases are insignificant compared to the third phase which affects the final yield significantly and needs more attention.
Embryo abortion, climatic factors, disturbed water relation, lack of nutrition, attack of diseases and pests and hormonal imbalances are the major factors that lead to fruit drop.
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10. Fruit drop Management practices
Regular irrigation during the fruit setting and development can reduce fruit drop considerably.
Foliar applications of bio-regulators such as NAA at 20 ppm or Alary (B- nine) at 100 ppm about 6 weeks after fruit set reduce fruit drop considerably.
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11. Black tip
Black tip is a serious disorder that is capable of causing considerable set back to the grower.
Among the commercial cultivars, Dasheri is most prone to the disorder, while Lucknow Safeda is least.
Black tip disorder has generally been detected in orchard located in the vicinity of brick kilns.
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12. Black tip
Symptoms
The damage to the fruit gets initiated right at marble stage with a characteristic yellowing of tissues at distal end.
Gradually, the color intensifies into brown and finally black.
At this stage, further growth and development of the fruit is retarded and black ring at the tip extends towards the upper part of the fruit.
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13. Black tip Management practices
Irrigation, condition of the tree and management practices play important role in deciding the severity of the disorder.
Planting of mango orchards in North-South direction and 5 to 6 km away from the brick kilns may reduce incidence of black tip to a greater extent.
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14. Black tip Management practices
Irrigation, condition of the tree and management practices play important role in deciding the severity of the disorder.
The incidence of black tip can be minimized by the spray of borax (1%) or other alkaline solutions like caustic (0.8%) or washing (0.5%) soda.
The first spray of borax should be done positively at pea stage followed by two more sprays at 15 days interval.
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