Pendinethalin (PROWL R herbicide) has proven to be effective in controlling broadleaf weeds and grasses in a reduced tillage program for irrigated cotton production. The use of Pendimethalin (PROWL) applied preplant and incorporated with irrigation water applied immediately after application proved to be efficacious in controlling weeds common to West Texas. In 1988, a experimental study demonstrated the effective control of weeds with no injury to cotton.