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Sigatoka Disease in Banana - Causes, Symptoms, Preventive Measures and Management

Posted by Dr. Asha K M on

Sigatoka disease of banana or Sigatoka leaf spot disease also known as yellow sigatoka is one of the serious fungal disease of Banana and has become a threat to banana growers in the country particularly in Karnataka, AP, TN, Assam, etc. Banana is one of the most important fruit crops of India which is rich source of vitamins, minerals and fiber. It is one of the energy providing fruits which is consumed in daily diet of Indian people.

Causes of Sigatoka Disease of Banana

  • High humidity, heavy dew and rainy weather with temperature above 21 ° C
  • Leaf wetness for prolonged time
  • Cooler temperatures
  • Poor drainage and low soil fertility particularly of potassium are more prone to sigatoka disease
  • Closer planting
  • Retaining many numbers of suckers without removing
  • The disease is more severe in moist conditions as surface moisture is required for spreading of disease

Disease Symptoms

Initial symptoms appear on the lower leaves with small reddish-brown specks develop near the tip or margin of lamina and also on the midrib of leaves. Later the specks increase in size & turn to spindle shape spots with reddish brown margin and grey center, surrounded by yellow hallow.

The spots coalesce and the leaves starts to dry. Gradually the infection spreads to the upper leaves.

Under favorable conditions the disease spreads to entire foliage and become severe after the emergence of fruit bunch. The fruit bunches of infected plants will fail to develop normally and may also ripen prematurely. This will ultimately reduce the yield.


Preventive measures:

  • Planting should be taken up in well drained soils and maintain proper drainage thereafter
  • Grow resistant varieties
  • Planting at recommended spacing
  • Remove suckers periodically to avoid overcrowding and maintain only one or two healthy suckers
  • Periodically remove and burn affected leaves to avoid further spreading
  • Provide adequate potassium fertilizers
  • Keep the fields free from weeds

Management: The following fungicides spray will help in managing with Sigatoka disease of banana

SI. No.

Chemical Name

Trade Name

Sticking and Spreading agents (Gum)



Kavach @ 1.5 to 2gm/Lit or Splash @ 1.5 to 2gm/Lit or Ishaan @ 1.5 to 2gm/Lit or Jatayu @ 1.5 to 2gm/Lit or Sarthak @ 1.5 to 2gm/Lit or Foliogold @ 1.5 to 2gm/Lit  






Super shot or Raccolo spraywell or sluuurp or Chipku or Sure shot or  Filwet or Unispread or Ecospread  



Tilt @ 0.5ml/Lit or Vespa @ 0.5ml/Lit or Taspa @ 0.5ml/Lit or Dhanuka zerox @ 2 ml/Lit


Thiophenate methyle

Roko @ 2-2.5 gm/Lit



Bavistin @ 2.5-3 gm/Lit or Bengard @ 2-2.5 gm/Lit or Benfil @ 2-2.5 gm/Lit


Carbendazim + Mancozeb

Indofil Sprint @ 1gm/Lit or Indofil Companion @ 1.5-2 gm/Lit or Saaf @ 1.5-2 gm/Lit   



3 Star 45 @ 1.5-2 gm/Lit or Satsuma @ 1.5-2 gm/Lit or Dithane M-45 @ 1.5-2 gm/Lit


Copper hydroxide

Kocide @ 2-2.5 gm/Lit


Copper Oxychloride

Blue copper @ 2-2.5 gm/Lit or Blitox @ 2-2.5 gm/Lit or Value Gold @ 2-2.5 gm/Lit

  • Depending on the disease severity repeat the spray @ 15-20 days intervals with different fungicides having different chemical composition.

 Chlorothalonil containing fungicides


Propiconazole containing fungicides                        Thiophanate methyle



Carbendazim containing fungicides                      Carbendazim + Mancozeb


             Mancozeb containing fungicides   
   Copper Hydroxide                                Copper Oxychloride


  • During pre-monsoon you can go for spray with mancozeb or chlorothalonil or Carbendazim containing fungicides and during rainy days spray with Propiconazole fungicides.
  • While spraying any fungicides on Banana foliage mix it with sticking, dispersing and spreading agents (gums) for effective use efficiency and better management
  • You can also go for application of chemical fungicides and biological agents alternatively @ 15 days interval to manage with Sigatoka disease   

Organic cultivation of Banana: In case of organically grown banana plantations you can go for application of only Biological agents such as Trichoderma viride or Pseudomonas or Bacillus sps along with Neem oil (Azadirachtin) which may help in preventing and managing with Sigatoka disease in Banana.

Note: The above mentioned bioagents can be applied even as prophylactic measure in case of organic cultivation of banana. They can be either applied to soil through drenching or foliar spray can be done. Bioagents needs to be sprayed regularly at 15-20 days interval to prevent the incidence of this disease.  



Technical Name

Trade Name



(Ecoderma @ 20g/lit or Sanjeevni @ 20g/lit or Multiplex Nisarga @ 1mL/lit or Treat Bio-Fungicide @ 20g/lit or Alderm @ 2-3mL/lit )



 (Bactvipe @ 1ml/Lit or Ecomonas 20g/Lit or Spot @ 1ml/Lit or Almonas @ 2-3 mL/Lit or Bio-jodi @ 20g/Lit)


Bacillus sps

(Mildown @ 1ml/Lit or Delfin @ 20g/Lit or Abacil @ 2-3 mL/Lit or Bio-jodi @ 20g/Lit or Milastin K @ 2mL/Lit or Aphos @ 2-3 mL/Lit or TB-2 Fertidose @ 2ml/Lit or TB-3 Fertidose @ 2ml/Lit)    


Neem oil (Azadirachtin)

(Econeem plus @ 1.5-2 mL/Lit or Econeem @ 1.5-2 mL/Lit or @ Ecotin @ 0.5 mL/Lit Wektocon @ 1-2 mL/Lit or Alnym liquid @ 2mL/Lit or  Neemark @ 1.5- 2mL/Lit or Nimbecidine 2mL/Lit or Altacide @ 2mL/Lit or Alcare @ 2-3 mL/Lit or 

For more information on products to manage with yellow sigatoka disease in Banana click the link below 



Dr. Asha K M


For more information kindly call on 8050797979 or give missed call on 180030002434 during office hours 10 AM to 5 PM  


Disclaimer: The performance of the product (s) is subject to usage as per manufacturer guidelines. Read enclosed leaflet of the product(s) carefully before use. The use of this product(s)/ information is at the discretion of user. 

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