- Worldwide distribution. On giant swamp taro, coconuts and other palms, bananas, pepper, brassicas, coffee, ginger, and many more. An important disease.
- Shallow brown dry corm rots, leaving holes 5-20 mm diameter and 10-20 mm deep, sometimes to the corm centre. Fine roots mostly absent. Leaves die early.
- Spread is on the suckers used for planting.
- Cultural control: clean planting material: (i) remove roots; (ii) remove outer leaves; (iii) cut out any rots (wipe knife in bleach); iv) wash to remove soil; v) avoid leaving plant parts removed in the field while preparing the tops: burn them.
- Hot water treatment - see Full Fact Sheets and cautions for this method.
- Chemical control: none recommended.
