Agriculture Reference
In-Depth Information
Fig 5.16 Leaf symptoms of black Sigatoka leaf spot.
Fig 5.18 Advanced symptoms of black Sigatoka.
A control program is in place to minimise the risk of
black Sigatoka to the industry. Susceptible cultivars have
been replaced by resistant ones in the Torres Strait and
Cape York and the movement of banana material out of
these regions is prohibited.
What to do if you suspect black Sigatoka
This pathogen is a biosecurity risk to Australia. Any
suspected affected plants should be reported to the
nearest Department of Primary Industries or the Plant
Health Australia hotline (1800 084 881).
Fig 5.17 Early lesions of black Sigatoka.
symptoms could be confused with damage from fruit-
spotting bug.
Management
Use the spray schedule recommended for leaf spot to
control this disease.
Source of infection and spread
The main source of inoculum is hanging banana leaf
trash, including bracts. Spores are carried by wind to
the fruit.
Use detrashing to remove the source of inoculum.
BLACK TIP
Cause
The fungus Deightoniella torulosa .
Importance
Black pit is a minor problem in well-managed plantations.
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