Plantwise Factsheets for Farmers
Bunchy Top Disease of Banana
Banana bunchy top virus
Recognize the problem
symptoms are dark green dots and streaks on the lower portion of the main vein
and leaf petiole. Later, these streaks become more evident on the leaf blade
and develop 'hooks' as they enter the main vein. These streaks can be seen
better when the wax surface of the leaf has been removed and the leaf is held
towards sunlight. In the later stages of infection, the leaves become narrower
and shorter and the margins of the leaves roll upwards. Severely infected
plants become stunted as a result of the reduced leaf size and the leaves
become bunched together at the apex of the plant.
This is an
important disease of banana. It is caused by virus. Once the virus enters the
plant, it remains there forever, so the disease cannot be cured. The virus that
causes the disease is transmitted by aphids from one plant to another in the
orchard, and from infected seedlings or suckers from one place to another.
plants should be removed and buried in the soil as soon as the symptoms have
of infected suckers into the community must be avoided by all community members
should be controlled using a botanical pesticide. Neem-based botanical
pesticides like Margosom or Nimbicide can be used.
@ 2 ml/lit water can be used for a large scale farms
When using a pesticide, always wear protective clothing and follow the instructions on the product label, such as dosage, timing of application, and pre-harvest interval.
The recommendations in this factsheet are relevant to:
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