What is the real cause of mango malformation?

Mango malformation disease is caused by one or more species of the fungus Fusarium. What are the symptoms? Abnormal, compact development of shoots and flowers are common signs of mango malformation disease.

How is mango malformation treated?

Malformation on mango inflorescens Use of disease free planting material. Incidence reduced by spraying 100-200ppm NAA during October. Pruning of diseased parts along the basal 15-20 cm apparently healthy portions. This is followed by the spraying of Carbendazim (0.1%) or Captafol (0.2%).

What is mango malformation?

Mango malformation disease (MMD) is a fungal disease of mango plants that can cause abnormal flower, leaf and shoot growth. Young nursery plants can be severely stunted. The disease occurs in many mango production areas around the world.

Which variety is resistant to mango malformation?

All the studied cultivars are completely resistant to mango malformation, however Ellaichi and Bhadauran cultivars are reported to be completely free from malformation (Kumar et al.

How many types of mango malformation are there?

Broadly three distinct types of symptoms are there. These are vegetative malformation and floral malformation. Later, these were grouped under two broad categories that is vegetative and floral malformation. Vegetative Malformation (VM) is more commonly found on young seedlings.

Which pesticides are used for the control of mango malformation?

Naphthalene Acetic Acid (NAA) at 100 or 200 ppm reduces the incidence of the disease in the following season. Spraying with trace elements of Zinc, Boron, and Copper before bloom and after fruit harvesting has proved to control or minimize the incidence of malformation.

What are the symptoms of mango?

Mango: Diseases and symptoms

  • Powdery mildew.
  • Anthracnose.
  • Die back.
  • Phoma blight.
  • Bacterial canker.
  • Red rust.
  • Sooty mould.
  • Mango malformation.

Why mango malformation is more severe in north west region of the country?

Temperature: The seasonal variation in the temperature at the time of flowering was correlated with the intensity of malformation. The incidence of disease is most severe in north-west region of India where mean temperature during flowering remains between 10-150°C.

How do you prevent stem end rot?

Pre-harvest sprays of fungicides to control bacterial black spot or anthracnose may reduce the incidence of stem-end rot in fruit. Prune trees to improve ventilation and spray penetration. Remove dead branches from trees. Avoid harvesting immature fruit.

Which plant growth regulator is effective for reducing mango malformations?

Naphthaleneacetic-acid (200 ppm) treated malformed panicles were reported to grow like healthy panicles of mango and produced fruits.

What causes malformation?

Genetic or inherited causes include: chromosomal defects: caused by too few or too many chromosomes, or problems in the structure of the chromosomes, such as Down syndrome and extra copy of chromosome 21 and sex chromosome abnormalities. single gene defects: a mutation in one gene causes the defect.