Management of banana leafspot (Sigatoka) disease in the Windward Islands∗

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Abstract
The rugged terrain and large number of smallholdings are important factors in the control of yellow Sigatoka (Mycosphaerella musicola Mulder) in the Windward Islands. A network of reference points has been established in each island where the disease level is monitored by the simple method of Stover and Dickson (1970) and a new method that assesses early infections on the young leaves. This information is used to decide spray applications. The use of Piche evaporimeter data to forecast spray applications has been investigated and is considered useful. Several fungicides have been tested and tridemorph, biloxazol and imazalil found to give satisfactory control with a view to introducing a rotation programme to avoid the continued sole use of benzimidazole formulations and possible occurrence of tolerance.

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