• Pustules appear first on the lower surface and in highly susceptible cultivars the original pustules may be surrounded by colonies of secondary pustules.
• Pustules may also appear on the upper surface of the leaflet.
• They may be formed on all aerial plant parts apart from flower and pegs. Severely infected leaves turn necrotic and desiccate but are attached to the plant.

Spray any one of the following:

• Mancozeb 1000g /ha
• Chlorothalonil 1000g /ha
• Wettable sulphur 2500g /ha
• Tridemorph 500 ml/ha
• If necessary, repeat the spray 15 days later.