This presentation summarizes common banana diseases caused by fungi, bacteria, viruses, and nematodes. It provides details on the symptoms, causal organisms, disease cycles, and favorable conditions of three key diseases: anthracnose, crown rot, and fruit rot. Anthracnose is caused by Colletotrichum musae and infects young fruits, leading to dark brown spots and sunken lesions. Crown rot, caused by Colletotrichum musae, Fusarium spp. and Botryodipiodia theobromae, causes blackening of the crown tissue and rotting during transportation. Fruit rot is caused by Botryosphaeria ribis and has similar symptoms to anthracn

1. Welcome
To
My Presentation

2. Dhiman Adhikary
Student Id: 120817

3. My presentation Topic…
List of Banana disease
Anthracnose of Banana
Crown Rot of banana
Fruit Rot of Banana

4. List of Common
Banana Diseases

5. Disease name Causal Organism
Anthracnose Colletotrichum musae
Black leaf streak (BLS) or Black Sigatoka Mycosphaerella fijiensis
Brown spot Cercospora hayi
Crown rot Colletotrichum musae
Damping-off Deightoniella torulosa
Fruit rot Botryosphaeria ribis
Leaf rust Uredo musae
Yellow Sigatoka Mycosphaerella musicola
Sheath rot Nectria foliicola
Leaf spot Leptosphaeria musarum
Fungal Disease

6. Disease name Causal organism
Bacterial wilt Pseudomonas solanacearum
Finger tip rot (gumming) Pseudomonas spp.
Rhizome rot Erwinia carotovora
Xanthomonas wilt (BXW), Banana
bacterial wilt, enset wilt
Xanthomonas campestris pv.
musacearum
Bugtok Pseudomonas solanacearum
Bacterial Disease

7. Disease name Causal organism
Bunchy top Banana bunchy top virus
Streak Banana streak virus
Bract mosaic Banana bract mosaic virus
Banana mild mosaic Banana mild mosaic virus
Viral Diseases

8. Disease name Causal organism
Nematode root rot (burrowing nematode) Radopholus similis
Root-knot
Meloidogyne arenaria
Meloidogyne incognita
Meloidogyne javanica
Spiral nematode root damage
Helicotylenchus multicinctus
Helicotylenchus dihystera
Nematode Disease

9. Anthracnose of Banana
Causal organism:
Colletotrichum musae

10. Symptoms
1. Infects the young fruits at the distal ends
2. Skin turns dark brown to black
3. Lenticular or diamond shaped
Fig: Anthracnose of banana

11. Ripe fruit Symptom
1. Initially brown spots appear and later become
sunken
2. Tip rot may develop and can rot the entire fruit
but the pulp is not usually affected

12. Disease cycle:
1. Conidia of Colletotrichum musae primarily
over winters on dead banana & banana
plantation microflora
2. In high humid weather and high
temperature(27-300c), infects banana flowers
petioles & leaves
3. Spores spread through wind and affect fruit of
banana .

13. Disease Cycle

14. Suitable factors for Anthracnose of Banana
1. High temperature (27-30° C) & high relative
humidity
2. Moist and warm weather during the reproductive
stages
3. Poor drained soil
4. Wet periods for a long time (12 hours or more)

15. Control Measures
1. Clean cultural practices
2. Harvesting at morning because low temperature
helps to minimize disease
3. Avoid injury during transport

16. Chemical control:
4. Spraying the bunches with 1% Bavistin/ Tilt
0.05% solution or any other copper fungicide 4
times at 15 days interval .
5. Dipping in Mancozeb 0.2% for 2-3 minutes
after harvest

17. Crown Rot of Banana
Causal Organism:
Colletotrichum musae
Fusarium spp,
Botryodipiodia theobromae

18. Symptom of Crown Rot of Banana
1. Initially blackening of the crown tissue of the
fruit
2. The rot may spread into the crown during
transportation
3. Rotting is most noticeable if transport time
exceeds 7 days

19. Fig: Crown Rot

20. Suitable factors for Crown Rot
High temperature
Poor transport facilities
Wet periods for a long time

21. Control:
Dipping or spraying the harvested hands with
0.05% Bavistin

22. Fruit Rot of Banana
Causal Organism:Botryosphaeria ribis

23. Fruit Rot of Banana
Anthracnose of banana and fruit of banana is more
or less similar.
In the later stage of anthracnose the whole fruit
become rotting. It is called the fruit rot.

24. Green fruit become rotting in the inner side
Pulp of banana become rotting in the ripening stage

25. Fruit Rot
Anthracnose

26. Suitable factors for Fruit Rot of Banana
1. High temperature
2. High relative humidity
3. Moist and warm weather during the
reproductive stages
4. Wet periods for a long time

27. Control Measures
1. Clean cultural practices
2. Harvesting at morning because low
temperature helps to minimize disease
3. Avoid injury during transport

28. Thanks to All