It’s interesting. Breadfruit readily produces root suckers, often pretty far from the tree so you don’t get wiped out very easily.
There is a program currently in CR to get small farmers to each plant out a hectare or so of breadfruit. The fruits will be bought, taken to a facility where they will be dried and converted into flour for export. Paul Zink brought micro propagated material from a collection in Hawaii in association with the EARTH, a CR horticultural school. There have also been problems with some of that material that, not knowing more, would appear to be root disease.
It could be that there is some pathogen in the soil that creates problems for breadfruit here although the early material brought by Bligh to Jamaica and then to CR by Caribbean immigrants is well established.
Peter