Disorders in Mango

NEXT

Disorders in Mango

Malformation Fruit Drop Black Tip

Click on the disorder

Mango disorders

Disorders in Mango

Vegetative malformation

Floral malformation

NEXT

Previousend

Malformation

Disorders in Mango

The vegetative malformation generally affects seedlings of  young plants in which there is a swelling of buds.

Vegetative malformation

Normal leaf bud

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.

NEXT

Previousend

Disorders in Mango

Malformed panicles have bigger florets than normal florets and contain mostly male flowers.

Floral malformation

Distorted florets

NEXT

Previousend

Normal floret

Disorders in Mango

Floral malformation

Floral malformation

Distorted panicles and florets

NEXT

Previousend

Short axis

Cluster like inflorescence

Thick rachis

Dwarfed leaf growth

Symptoms

Disorders in Mango

Floral malformation

Floral malformation

Remove the malformed panicles as they appear on the tree

Back

Previousend

Spray 200 ppm of NAA once in October.

Management practices

Disorders in Mango

Fruit drop

But, some times the fruit drop will be very heavy, even up to 99%, at various stages of fruit growth.

NEXT

Previousend

Among the commercially grown varieties, Langra is more susceptible to drop, while Dasheri is the least.

Fruit drop is natural in mango.

The intensity of fruit drop varies from variety to variety.

Disorders in Mango

Fruit 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.

NEXT

Previousend

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.

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.

Disorders in Mango

Fruit drop

Regular irrigation during the fruit setting and development can reduce fruit drop considerably.

Back

Previousend

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.

Management practices

Disorders in Mango

Black tip

Among the commercial cultivars, Dasheri is most prone to the disorder, while Lucknow Safeda is least.

NEXT

Previousend

Black tip disorder has generally been detected in orchard located in the vicinity of brick kilns.

Black tip is a serious disorder that is capable of causing considerable set back to the grower.

Disorders in Mango

Black tip

Gradually, the color intensifies into brown and finally black.

NEXT

Previousend

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.

The damage to the fruit gets initiated right at marble stage with a characteristic yellowing of tissues at distal end.

Symptoms

Disorders in Mango

Black tip

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.

NEXT

Previousend

Irrigation, condition of the tree and management practices play important role in deciding the severity of the disorder.

Management practices

Disorders in Mango

Black tip

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.

Back

Previousend

Irrigation, condition of the tree and management practices play important role in deciding the severity of the disorder.

Management practices

The first spray of borax should be done positively at pea stage followed by two more sprays at 15 days interval.