Southern Ag Atrazine Weed Killer for St Augustine Grass can be applied as a broadcast or as a spot treatment.
Please refer to the Rate Application Chart on page 6 of the product label for more information.
As long as the hose end sprayer you are using can be calibrated to the amount needed for the area you are treating, Southern Ag Atrazine Weed Killer for St Augustine Grass is applied at 4.3 fl. oz. per gallon of water per 500 sq ft.
View the full product label for more information.
Southern Ag Atrazine Weed Killer is formulated specifically for St Augustine and Centipede grasses only and should not be used on Bermuda grass.
Blindside Herbicide WDG would be safe for Bermuda and St. Augustine lawns for broadleaf and grassy weed control. Please view the product label for application rates and more information.Southern Ag Atrazine Weed Killer for St Augustine Grass is only safe for St. Augustine and Centipede so it could possibly kill ryegrass since it is not labeled safe for ryegrass. View the product label for more information.
Another option would be Image Kills Nutsedge that is solely for warm season turfgrass and should not be used on cool season turf like ryegrass. View the product label for more information.
Southern Ag Atrazine Weed Killer for St Augustine Grass only lists spurweed on the label not burweed so we cannot confirm it would work for it. Pendulum 2G is labelled for Burweed in both Cool and Warm Season Lawns.
Please refer to the Pendulum 2G product label for your lawn type and application rates.
Burweed is best controlled with a pre-emergent before the weed germinates in early spring so depending on the region you are in, you may be past the window to apply a pre-emergent. We would suggest contacting the Master Gardener with the Cooperative Extension in your county for confirmation on if a pre-emergent would be effective now.
