Kills many broadleaf weeds Also used in centipede grass Provides suppression of crabgrass Controls emerged weeds and weeds from seed CONTAINS: 4% Atrazine USE ON: St. Augustine and centipede lawn grasses. CONTROLS: Many common grassy and broadleaf weeds. RATE: 4.33 ounces per 500 sq. ft. per 1 gallon of spray APPLICATION: Apply in 2 gallons of water to cover 1,000 sq. ft. CAUTION: SPRAY TO ACCURATELY OBTAIN INDICATED COVERAGE WITHOUT OVERLAP. NOT RECOMMENDED FOR USE WITH HOSE-END SPRAYERS. Best results are obtained by application in early spring.