blatta

Thanks for the replies,

It is a new plant, bought as a dormant corm. It was almost certainly imported from India.

I'm in the UK, so its very unlikely to have been infected locally.

Is bunchy top only spread by the aphid, Pentalonia nigronervosa? As in the aphid has quite a specific role, not just dirty mouthparts. The very few aphids I get tend to be small pink ones that sometime feed on seedlings, especially Musa dasycarpa, and sometimes green ones on larger plants which never manage to establish.

Can the virus survive outside the plants for long? I always take care not to use the same tools for many bananas, especially new ones.