Leaf blight. Irregular, dark brown blotches on leaves and petioles. All above ground parts of the plant may be killed progressively from the outer leaves inwards, with a reduction in root development.
Morphology
Conidiophores arising singly or in small groups, pale to brown, up to 80 µm long, 6–10 µm thick, usually unbranched, with one or more distinct conidial scars. Conidia usually solitary, occasionally in chains of 2, straight or curved, obclavate, rostrate, 100–450 µm long (including rostrum), 16–25 µm wide, pale olivaceous brown to brown with age, smooth, 7–11 transverse septa, 1 to several longitudinal or oblique septa, constricted at septa, basal scar not very obvious; beak is often longer than body of conidium, unbranched or branched once, hyaline or pale coloured, 5–7 µm thick at base, tapering to 1–3 µm near apex.
