Anthracnose: Colletotrichum musae
Symptoms
- Small, black, circular specks on the skin- sunken & coalesce to form large spots.
- Bright salmon-coloured conidial mass appears on the spots.
- Severely infected fruits become dark due to blemishes.
- Acervuli also develop on the skin and the pulp becomes partially soft.
- Non-latent infection usually starts during or after the harvest of bunches in small peel wounds and it continues to develop without a dormant period.
- Many latent infections at the time of harvest show large number of appressoria on the surface of the peel.
- The spread of the disease is by air-borne conidia and numerous insects which frequently visit banana flowers also spread the disease.
- Temp.30 to 35°C and RH- 85.7 -100 %
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Dark brown patches on immature fruits |
Fruit turns black and shrivel |
Whole bunch turns black |
Management
- Post harvest dipping of fruits in Carbendazim 400 ppm, or Benomyl 1000 ppm, or Aureofunginsol 100 ppm.
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