Surge Herbicide - 2.5 Gallon. Surge® Broadleaf Herbicide for Turf provides an amine option for FAST weed control in warmer weather. Applications can be made at temperatures up to 90°F without loss of efficacy or speed when used as directed. Surge is highly selective in established cool-season and warm-season turfgrasses, including bluegrass, fescues, perennial ryegrass, bentgrass, bermudagrass, zoysiagrass, centipedegrass, bahiagrass and buffalograss. Surge is rain-fast in 6 hours, with a reseeding interval of 3 weeks.