Southern Ag Atrazine St. Augustine Weed Killer Catalog Outdoor, Lawn & Garden Gardening Southern Ag Atrazine St. Augustine Weed Killer Manufacturer : Southern Ag Description • 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. Rates Please contact us for current pricing and availability.