SePRO 1090.128 Octane 8 oz 2% Suspension Concentrate Herbicide is a simple, economical solution to faster weed control. Best applied on a sunny day, weeds sprayed with Octane show visual herbicidal symptoms within 24-48 hours. Emerged weeds are quickly killed, helping in timely tournament prep or instant satisfaction by membership and greens committees. Octane is also safe to use on recently seeded turf, being gentle on desirable cool- and warm-season turfgrass such as Kentucky bluegrass, perennial ryegrass, tall fescue, bermuda grass, centipede grass, St. Augustine and zoysia grass.