Growing underground, it is prone to infestation by the feathery mottle virus and worms.

FORBES: Millions Served

Into the sweet potato she spliced a gene from the pyrethrum, a white flower whose ingredients are fatal to insects and the feathery mottle virus.

FORBES: Millions Served

Into the sweet potato she has spliced in a gene from the pyrethrum, a white flower whose ingredients are fatal to insects and the feathery mottle virus.

FORBES: Millions Served