On Oct 2, 2008, curzio from Kenosha, WI wrote:
Medium size round tubers with yellow skin and white flesh. South American origin (Peru, Argentina). Found web posting mentioning Bt (Bacillus Thurengensis) to control the potato tuber moth (PTM, Phthorimaea operculella) by INTA, the Argentian Dept of Agriculture - which reports from 2004 World Potato Congress claiming that China grows about 1.25 million acres of Achirana (or 10% of the estimated total production of 70 million metric tonnes) More information can be found by googling Kenosha Potato Project.
On Feb 10, 2006, Farmerdill from Augusta, GA (Zone 8a) wrote:
A potato variety bred by the Argentine national program (INTA) in 1971, for pathogens and distributed it to many national programs. It is a Bt potato bioengineered to control the Potato tuber moth (PTM, Phthorimaea operculella).