Reliable Weed Control for St. Augustine & Warm-Season Lawns
Southern Ag Atrazine 4% Weed Killer is a trusted selective herbicide designed specifically for St. Augustinegrass and other warm-season turf, providing effective control of many broadleaf and grassy weeds without damaging desirable lawn grasses when used as directed.
Perfect for homeowners and professionals, this product delivers both pre-emergent and early post-emergent control, helping prevent weeds before they start while also targeting existing growth.
🌱 Controls a Wide Range of Weeds
- Chickweed
- Henbit
- Spurge
- Clover
- Sandspur (suppression)
- Annual bluegrass (Poa annua)
- Other listed broadleaf and grassy weeds
⚡ Key Features & Benefits
- Active Ingredient: Atrazine 4.0%
- Selective Weed Control – safe for St. Augustinegrass and Centipedegrass
- Pre & Post-Emergent Action – prevents and controls weeds
- Excellent for Warm Climates – ideal for Southern lawns
- Easy-to-Mix Liquid Concentrate
- Proven Performance – widely used and trusted formula
🏡 Ideal Use Sites
- St. Augustinegrass lawns
- Centipedegrass lawns
- Residential landscapes
- Commercial turf areas
🌿 Turfgrass Compatibility
Safe for:
- St. Augustinegrass
- Centipedegrass
⚠️ Do NOT use on:
- Bermuda grass
- Zoysia grass
- Fescue or cool-season grasses
📋 Application Instructions
- Apply as a broadcast or spot treatment
- Use on actively growing weeds for best post-emergent control
- Apply before weed germination for pre-emergent control
- Avoid applications during extreme heat or drought stress
- Follow label rates carefully
⚠️ Safety & Environmental Notes
- Do not apply near water bodies or where runoff may occur
- Keep out of reach of children and pets
- Always follow EPA-approved label instructions
- Observe local regulations regarding atrazine use
📊 Product Specifications
- Formulation: Liquid concentrate
- Active Ingredient: Atrazine 4.0%
- Application Type: Pre- and post-emergent herbicide
- Use Sites: Warm-season turf (St. Augustine & Centipede)
- EPA Registered: Yes
⭐ Why Choose Southern Ag Atrazine 4%?
This product is one of the most effective and economical solutions for St. Augustine lawns, offering broad-spectrum weed control with both preventative and curative action—perfect for maintaining a clean, healthy lawn in southern climates like Florida.



















































