Worldwide distribution. On banana and plantains. Occurs on AAB, ABB, AAAB tissue cultures. A minor disease (but, severe strains in Cavendish in Africa, Central and South America - internal rots, splits and death).
Yellow streaks or bands from midrib to the margin, darkening with age. Affects vigour and fruit size.
Spread is in planting material, and by mealybugs.
Cultural control: disease-free suckers; survey and remove diseased plants as soon as disease seen.
Chemical control: treat mealybugs with white or horticultural oils or soap.