If 1% of NC soybean farmers switched 5% of their acreage from a variety susceptible to stem canker to a variety resistant to stem canker, and 1% of that acreage got stem canker, farm gate profits would be increased by $8,000, and checkoff income would be increased by $40. More importantly, we will learn whether the stem canker biotypes do or do not coincide with the advertised claims of stem canker resistance, especially for the 15 most widely recommended Glyphosate Tolerant varieties available in the state.