Atrazine St. Augustine Weed Killer

Atrazine is a trusted selective herbicide designed specifically for St. Augustine and centipede grass. It controls many common broadleaf and grassy weeds without harming these sensitive warm-season turf types when used correctly.

What It Controls

• Dollarweed
• Clover
• Chickweed
• Henbit
• Spurge
• Florida betony
• Other listed broadleaf weeds

Atrazine is especially effective on winter weeds in southern lawns.

When to Apply

• Late winter to early spring
• When temperatures are below 85°F
• When turf is not under drought or heat stress

Avoid applying during high summer temperatures.

Application Rate

Mix 4.33 oz per 500 sq ft using approximately 1 gallon of water per 500 sq ft for even coverage.

• Apply evenly without overlapping
• Use a calibrated sprayer for accuracy
• Do not use hose-end sprayers for precise control

Important Notes

• Do not apply to stressed turf
• Not labeled for use on all grass types
• Always follow label directions

Atrazine is an excellent choice for southern homeowners managing winter and early-season broadleaf weeds in St. Augustine and centipede lawns.