TeleSupport India Repository

Solution Control of Sigatoka disease of Banana
Country India
Last update: 13/10/2006
Summary Sigatoka disease of banana is very common in almost all parts of West Bengal, especially where Kabuli, Giant Governor, Robusta etc. varieties are extensively grown. This is more observed in fields where drainage facility/management is poor.
High temperature (25-35C) and humidity helps the disease to get spread. This is, thus, mostly found in rainy season. In case of early attack, yield is greatly reduced. In severe infestation, banana fruits do not mature at all.
Some simple management practices like drainage management, clean cultivation, wider spacing and resistance variety selection can successfully avoid or fight the disease.
forum discussion www.telesupport.org/simplemachines/index.php?topic=253.0 
Contributed by person details Dr. Rupak Goswami (CI, TeleSupport India)
Challenge/Issue Sigatoka disease is caused by Cercospora musae, which is the conidial stage of a fungus Mycospherella musicola. A large proportion of farmers in West Bengal grow Sigatoka-susceptible Giant Governor variety of banana (especially the farmers who want to avoid a more serious Panama wilt which is very common in Martaman, Chapa etc. plant type). Some farmers avoid growing Martaman (relatively taller) in stormy areas too in fear of plant dislodging.
In rainy season, almost invariably the disease attacks banana plants resulting in poor yield/immature fruit/broken bunch. Farmers generally follow a closer spacing for getting higher yield, especially when grown as single crop. This hastens up the disease spread.
Method Try to avoid varieties like Giant Governor and go for Martaman, Chapa etc. if Panama disease is not common in the area.
Avoid growing banana in shady places.
Do not collect suckers from affected fields.
Ensure drainage of the field.
Remove weeds from the field.
Avoid closer spacing.
Spray any copper fungicide and/or Carbendazim.
Lessons learned Disease symptoms (spots on leaves) are larger and rounder in water suckers than in the sword suckers.
Symptoms (spots) are observed parallel on the leaves and move from marginal portion of lamina to the midrib of the leaf.
Addition of sticker with fungicides during spray is essential as (a) banana leaves are waxy in nature and (b) frequent rainfall affects fungicide effectiveness.
Fungicides Propiconazole and Difenoconazole are required in lesser amount, provide long-term protection against the fungus and are safer for the crop. Difenoconazole also has translaminar action, which is helpful for spraying in rainy season.
List Keywords
1.1 Socio- economic Sector (OECD) 311 Agriculture
1.4 Target group(s) 1. Local communities
2.2 Production Chain 3. Pest & Disease Control
2.4 Food Crops Banana/Plantain (Musa)
2.5a Agro-Ecology: Thermal zone 1: Tropical
Telesupport Themes IPM
Stage Country Region Location
Apply India West Bengal Ghoragacha and Madandanga
Role Person name
Describer person details Dr. Rupak Goswami
Role Organisation Acronym
Publisher organisation details Change Initiatives CI
Network Organisation organisation details TeleSupport India Network TeleSupport India
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