The economics of Bollgard cotton was compared with non-Bollgard cotton at 109 sites across the Southern and Southeastern cotton growing states in 1998. In most cases the data was collected from actual grower experiences where a Bollgard variety was compared to a grower-selected, non-Bollgard variety with a similar maturity level and agronomic management requirements. Bollgard varieties included representatives from Delta and Pineland, Paymaster and Stoneville seed companies. Although results varied by area, all areas averaged higher net returns (calculated by Yield Value - Total Insect Control Costs) with Bollgard varieties compared to non-Bollgard varieties. For the 109 sites, the average Bollgard advantage was approximately $40 per acre, resulting from both insect control savings returning an average of $16 per acre, and higher yields returning an average of $24 per acre.