Effectiveness may vary depending on factors such as herbicide rate, size of weeds, time of application, soil, and weather.Weed Control Symbols: E = 90%???100% control; G = 80%???90% control; F = 60%???80% control; P = less than 60% control; - = insufficient observations.Time of Application Symbols: PPI = Preplant Incorporated; PRE = Preemergence; POT = Postemergence Broadcast.