Jump to Top

Southern Ag Atrazine St. Augustine Herbicide

St. Augustine Weed Killer

Southern Ag Atrazine St. Augustine Logo
  • Kills many broadleaf weeds
  • Also used in centipede grass
  • Provides suppression of crabgrass
  • Controls emerged weeds and weeds from seed
Active Ingredient %
Atrazine 4.00 %
Other Ingredients 96.00 %
Mode of Action
Photosynthesis Inhibitors
Site of Action
(5) Photosystem II Inhibitor
Available on Amazon

$31.49 / gal
Buy now

Available on Do My Own

$36.92 / gal
Buy now

Safe On
Click on a grass type below to see safe application rates:
Centipedegrass and St. Augustinegrass
Not Safe On
No not safe on treatments listed. Please, review the label or contact the merchant for more information.
Maximum Yearly Limits
Maximum rate per application on Turfgrass (including lawns) is 8.6 fluid ounces (1lb ai/A) per 1,000 sqft. Maximum of two applications per year is permitted.
Effective Temperature Range
Do not apply when temperatures exceed 90°F.
Before Seeding Instructions
Do not overseed turf within 6 months after treatment.
CertainLabel™

Southern Ag Atrazine St. Augustine Optimized Application Label Rate Calculator

Legend:
Control
Suppression
No Control
1
Spot Treatment
Label Rate:
8.6 fluid ounces per gallon
Cost Effectiveness:
Makes 14.884 gallons
at a cost of
$2.12 per gallon
Blanket Treatment
Label Rate:
8.6 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 14884 square feet
at a cost of
$2.12 per 1,000 sqft
2
Spot Treatment
Label Rate:
8.6 fluid ounces per gallon
Cost Effectiveness:
Makes 14.884 gallons
at a cost of
$2.12 per gallon
Blanket Treatment
Label Rate:
8.6 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 14884 square feet
at a cost of
$2.12 per 1,000 sqft
Instructions:
Apply this product in early April followed by a second application in July.
3
Spot Treatment
Label Rate:
8.6 fluid ounces per gallon
Cost Effectiveness:
Makes 14.884 gallons
at a cost of
$2.12 per gallon
Blanket Treatment
Label Rate:
8.6 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 14884 square feet
at a cost of
$2.12 per 1,000 sqft
Instructions:
This weed emerges in the fall. Apply this product in mid to late October followed by a second application in mid to late February.
4
Spot Treatment
Label Rate:
8.6 fluid ounces per gallon
Cost Effectiveness:
Makes 14.884 gallons
at a cost of
$2.12 per gallon
Blanket Treatment
Label Rate:
8.6 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 14884 square feet
at a cost of
$2.12 per 1,000 sqft
Instructions:
Control of Spurweed can be best obtained when applying when Spurweed has newly emerged (December and January).
Questions & Comments
Log in or sign up to leave comment   Log In  Sign Up