Simazine 4L herbicide controls a variety of annual broadleaf and grass weeds in Agricultural and Ornamental crops. It is similar to Princep, can be used in the fall or spring preemergence applications to help control winter annuals and a wide range of grasses and broadleaf weeds. Some of the label specified weeds that Simazine 4L controls are Common Chickweed, Foxtail species, and Henbit. Tank mix Simazine 4L with a glyphosate product like Buccaneer 5 extra & 2-4-D in fall applications to attain a clean seed bed in the spring. • Simazine 4L contains 4 pounds of active ingredient Simazine per gallon.