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Ministry of Agriculture, Food and Rural Affairs

disease Identification Key

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Dark yellow to yellow orange spots with a dark green border on the calyx end.
Dark yellow to yellow orange spots with a dark green border on the calyx end.
Lesions on the calyx end, purplish, at first, eventually the entire calyx end becomes blistered and deformed; tube-like structures and powdery, bright orange spores may be present. Lesions on the calyx end, purplish, at first, eventually the entire calyx end becomes blistered and deformed; tube-like structures and powdery, bright orange spores may be present.
Net-like russetting on small and stunted fruit; leaves near the fruit are covered with a white powdery fungus. Net-like russetting on small and stunted fruit; leaves near the fruit are covered with a white powdery fungus.
A russetting line runs down the fruit or russeting is found near the stem of the fruit. A russetting line runs down the fruit or russeting is found near the stem of the fruit.