Bio-Agent "V" was a bio-engineered viral agent used by entrepreneur Rod Portlyn to render the soil of the farming world Vemlar incapable of growing crops. Bio-Agent "V" was reported to be untraceable, thus making its effects irreversible. Once evidence of Portlyn's use of Bio-Agent "V" was discovered in his private files, his rival, Patrice Bennett, vowed to finance efforts to combat its effect on the planet. (SCE eBook: The Art of the Deal)