Southern Ag Atrazine St. Augustine Weed Killer 32 oz – Weed Control for St. Augustine & Centipede Lawns

Overview

Meet the Southern Ag Atrazine St. Augustine Weed Killer, a 32 oz specialty herbicide designed to help keep warm-season lawns looking their best. This product targets a range of common weeds while being formulated for St. Augustine and centipede grasses. Packaged in a light tan bottle, it blends into your spray mix and applies with ease when used as directed.

The formulation contains 4% atrazine, a level chosen to support effective weed management under typical lawn care conditions. Use it as part of your seasonal lawn routine to address both emerged weeds and those that emerge from seed, helping you maintain a cleaner, more uniform turf look.

Key benefits

• Keeps weeds in St. Augustine and centipede lawns under control
• Addresses a broad range of broadleaf and grassy weeds, including some grasses commonly encountered in warm-season lawns
• One quart covers up to approximately 3,720 sq ft, helping you plan applications for various yard sizes
• Designed for steady, even coverage when mixed with water as directed

How to apply and best practices

For best results, mix the product with water and apply using a suitable sprayer to ensure even coverage. Typical mixing guidance aligns with 4.33 oz per 500 sq ft, combined with about 2 gallons of water to cover 1,000 sq ft. Apply in a way that maintains consistent spray for uniform weed suppression across the treated area.

• Coverage: One quart treats roughly 3,720 sq ft, making it suitable for medium to larger lawns
• Spray technique: Apply evenly to the target area and avoid overlapping sprayed zones
• Compatibility: Not recommended for hose-end sprayers; follow label directions for best results
• Timing: Early spring applications tend to yield favorable outcomes when weeds are just starting to grow

What to know before use

Designed for St. Augustine and centipede grasses, this product addresses both emerged weeds and those from seed. As with any herbicide, read the label to confirm proper use for your lawn and follow all safety and handling instructions. The product is intended to help you manage weed pressure without overhauling your turf care routine.