Banana Flashcards
Yellow sigatoka
Pseudocercospora musicola
Mycosphaerella musicola
Pseudocercospora musicola
Initial light green narrow specks, streaks expands
With well defined darker margin
Pseudocercospora musicola
Tissues in the surrounding spots became yellow
Yellow sigatoka
Black sigatoka
Pseudocercospora fijinensis
Initial tiny reddish brown specks
Leaf tissue became yellow
Pseudo cercospora
Fijinensis
entire leaves blackens and dries
Black sigatoka
Management of pseudocercospora musicola
- Periodically remove and burn affected leaves to
avoid further spreading - Provide adequate potassium fertilizers
- Keep the fields free from weeds
Management pseudocercospora fijinensis
Reduce humidity
Planting density
1650-1850 plants/HA
Aerial spray
Fusarium wilt
Fusarium oxysporum f. Sp. Cubense
Gradual yellowing
Drying of leaves
Pseudostem may split
Eventually dies
Fusarium oxysporum
f. Sp. Cubense
Suckers wilt
Fruit development stops
Prematurely splits
Ralstonia solanacearum
Light yellow coloring of lower leaves
Eventually turn brighy yellow with ded margins
Fusarium wilt
Moko disease
Ralstonia solanacearum
Externally plants looked healthy
Only male inflorescense show symptom
Ralstonia solanacearum
Black discoloration of fruit pulp
Stems produce creamy bacterialOoze when cut
Moko disease
Banana bunchy top disease
Banana bunchy top virus
BBTV/ BBTD vector
Pentalonia
Nigronervosa
Leaf yellows
Rolls inwards
Have rosette appearance
Leaves r narrow
BBTD
Nearly emerging leaves have bunched appearance
Infected plants
Rarely produce fruits
BBTD
