REV® brand sunflower hybrids have now been added to the Terral Seed line-up! REV® brand sunflower hybrids with the DuPont? ExpressSun® herbicide tolerant trait are tolerant to DuPont? EX-PRESS® herbicide. This unique sunflower system from DuPont is designed to maximize weed control in sun-flower crops, enhancing ease of production and yield. This system provides improved weed control over conventional hybrids with traditional herbicides. For the best results, always use Express® herbicide with TotalSol® soluble granules with the ExpressSun® trait system.