Southern Ag Atrazine Weed Killer is formulated specifically for St Augustine and Centipede grasses only and should not be used on Bermuda grass. We do carry a full line of selective herbicides of which many are labeled for use on Bermuda.
How do you kill St Augustine grass without killing Bermuda?
There is no selective herbicide you can use to kill the Bermuda grass without also killing the St. Augustine. You can, of course, use a non-selective herbicide, like glyphosate, to spot treat, but if any of the product drifts, it is going to kill whatever it touches.
What is the best herbicide to use on Bermuda grass?
The top herbicide we recommend is Ornamec 170 Herbicide. This is a selective herbicide which means it will only target the Bermudagrass you want gone and will not do any damage to your desired grasses.
What will atrazine kill?
Specifically, atrazine is a chlorotriazine herbicide. It is used for broadleaf weeds both before and after they sprout. It is also used on some grassy weeds.
Can you use atrazine on Bermuda? – Related Questions
Why we should not use atrazine?
Atrazine has a lot of adverse effect on health such as tumors, breast, ovarian, and uterine cancers as well as leukemia and lymphoma. It is an endocrine disrupting chemical interrupting regular hormone function and causing birth defects, reproductive tumors, and weight loss in amphibians as well as humans.
What grasses are safe with atrazine?
Atrazine can be applied to actively growing and dormant centipedegrass or St. Augustinegrass. Bermudagrass can be injured if treated with atrazine while actively growing. Atrazine should not be applied to tall fescue, Kentucky bluegrass or when warm-season grasses are emerging from winter dormancy.
Is atrazine worse than Roundup?
“Atrazine is a hundred times worse than glyphosate, the active ingredient in Roundup, because it’s an endocrine disruptor,” said Nathan Donley, a scientist at the Center for Biological Diversity, which has called for a complete ban of the chemical. “It can have huge impacts and should have been banned a long time ago.”
What weeds are killed by atrazine?
Cocklebur, jimsonweed, ground cherry, lambsquarters, morningglory, mustards, ragweed, pigweed, velvetleaf, purslane, nightshade, Spanish needle, broomweed, clovers, chickweed and kochia are common broadleaf weeds for which atrazine is rated to kill or control.
What weeds does atrazine target?
Atrazine is a herbicide that selectively controls broadleaf (dicot) weeds, such as pigweed, cocklebur, velvetleaf and certain grass weeds in fields of corn and sorghum. Selective control means that the target weeds are controlled, with little or no injury to the crop.
What types of plants is atrazine used for?
Atrazine is an herbicide widely used for control of broadleaf and grassy weeds. It is sprayed on row crops such as corn, sorghum and sugarcane, and in some areas is used on residential lawns. It has also been used on highway and railroad rights-of-way. EPA now restricts how atrazine can be used and applied.
When should I apply atrazine to my lawn?
Hi-Yield Atrazine Weed Killer is best applied during early spring or dormant periods when weeds are small and have not yet emerged. Rain or water within 2 or 3 days of application may decrease the effectiveness on emerged weeds.
How long does it take for atrazine to work?
Typically, Atrazine is a very slow-acting herbicide, and it can take up to 4 to 6 weeks after application to see desired results and death of the target weed.
What month do you apply atrazine?
The best time to apply Atrazine is in spring, typically as lawns begin to green up. Depending on your region, this may be anywhere between February and April. In spring, at lawn green-up. Apply when temperatures are 65–90℉ (18–32℃).
Does atrazine need rain to activate?
As a result, weed control with soil applied herbicides can be less than desirable under dry conditions.
Single Active Ingredient Products.
| Single Active Ingredient Products |
Precipitation Required for Activation |
| Pyroxasulfone (Zidua) |
0.5 inches before weed emergence |
| Atrazine |
Nothing about precipitation amounts mentioned |
Does atrazine need rain to work?
Answer: According to the Hi Yield Atrazine Weed Killer Product Label: Rain or water within 2 or 3 days of application may decrease the effectiveness on emerged weeds. However, for the control of weeds from seeds, rainfall or watering is necessary within 7 to 10 days after treatment.
How long will atrazine last?
Additional Information
| Availability |
Online |
| Shelf Life |
Atrazine 4L Herbicide will last for up to 1 to 2 years when stored according to the product label. Store Atrazine 4L Herbicide in a cool, dry storage area. |
When can I mow after spraying atrazine?
Answer: You may mow your lawn at least 3-4 days after application of Hi-Yield Atrazine Weed Killer.
Does atrazine work in the winter?
Atrazine liquid:
One of the best winter weed controls is liquid atrazine. It can be used from late March through May for winter weed control. It does a really good job on chickweed, clovers, lawn burweed, dollarweed and works well on annual bluegrass (little grass plant that takes over yards in the winter).
Is atrazine a pre or post emergent?
Atrazine 4L is a pre- and post-emergent herbicide for the control of various annual broadleaf and grass weeds.
Do farmers still use atrazine?
Yet here in the United States atrazine remains the nation’s second-most used pesticide, with more than 70 million pounds used each year on just three crops: corn, sorghum, and sugarcane.