Southern Ag Atrazine Weed Killer for St Augustine Grass - Questions & Answers

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  • Asked by L. from La
    07/01/2018
    Q
    Can Southern Ag Atrazine Weed Killer for St Augustine Grass be applied in the early morning before the temperatures for the day reach 90+ and still be safe for my lawn?
    A

    Yes, the best time to apply Southern Ag Atrazine Weed Killer for St Augustine Grass is early morning or late evening when the temperatures are the coolest. As long as the application has had time to dry, high temperatures in the following days will not injure the lawn. 

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    43 of 44 people found this answer helpful.
  • Asked by Waynette from Greenville, Tx
    03/06/2016
    Q
    How long do I need to apply before rainfall for Atrazine to be fully effective?
    Rainfall imminant and spraying with Atrazine
    A

    Per the product label for Southern Ag Atrazine Weed Killer for St. Augustine Grass: 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

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    39 of 40 people found this answer helpful.
  • Asked by J. from Ormond Beach, Fl
    11/20/2016
    Q
    What is the difference between Southern AG Atrazine and Hi Yield Atrazine?
    A

    Hi-Yield Atrazine Weed Killer and Southern Ag Atrazine Weed Killer for St. Augustine Grass are very similar except for the manufacturer. Almost the same mix rate, same percentage of active ingredient, and they also treat for the same weeds. 

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    39 of 39 people found this answer helpful.
  • Asked by Mickey from Texarkana, Ar
    06/25/2017
    Q
    Should I spray Southern Ag Atrazine Weed Killer for St. Augustine Grass before or after I mow?
    A

    It is recommended that you wait at least two days before or two days after to mow after applying Southern Ag Atrazine Weed Killer for St. Augustine Grass.

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    31 of 31 people found this answer helpful.
  • Asked by Carl from Arlington Tx.
    06/25/2012
    Q
    Can I use Southern Ag Atrazine on Bermuda grass with out any harmfull effects on my lawn?
    A
    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. Each product on our site has the product label link in the description page for your convenience. We are always here to answer questions or make recommendations should you need help.
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    30 of 31 people found this answer helpful.
  • Asked by Betty from Tallahassee, Fl
    03/23/2017
    Q
    Will Southern Ag Atrazine Weed Killer kill bermuda grass that is taking over my centipede lawn?
    If not, do you know a herbicide that will work?
    A

    Southern Ag Atrazine Weed Killer will not kill bermuda grass in a centipede lawn.  Unfortunately, because these two grasses are so closely related, what kills one will likely harm the other as well.  In this situation, it is normally recommended to spot treat the bermuda as much as possible with a Roundup-type product (which will also kill the centipede immediately surrounding it) and then replant with centipede in a couple of weeks when the bermuda is gone. 

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    16 of 23 people found this answer helpful.
  • Asked by Cindy from Royal Palm Beach, Fl
    10/27/2017
    Q
    Does it matter what the temperature is while spraying Southern Ag Atrazine?
    A

    Do not apply Southern Ag Atrazine Weed Killer for St. Augustine Grass when temperatures exceed 90 F to avoid damaging your desirable turf.

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    14 of 14 people found this answer helpful.
  • Asked by Barbara from Camilla, Georgia
    03/24/2015
    Q
    Will Atrazine kill daylilies?
    When I spray my lawn if some atrazine spray get on my daylilies or rose bushes will it kill them or harm them in any way?
    A
    The product labels for the Atrazine products we carry do not state that they are safe for ornamentals so to be safe we would recommend avoiding spraying or allowing drift to contact anything desirable.
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    13 of 16 people found this answer helpful.
  • Asked by Brian from Sebastian
    01/20/2016
    Q
    Is Southern Ag Atrazine Weed Killer safe for St. Augustine Floratam grass on the East Coast of Florida near Melbourne Beach?
    I just bought the house and there are established weeds. If Southern Ag Atrazine Weed Killer for St Augustine is safe for Floratam, can I apply it now?
    A

    Yes, Southern Ag Atrazine Weed Killer for St. Augustine Grasses is able to be used on St. Augustine Floratam lawns. It is both a pre-emergent and post emergent and is best applied when weeds are small or have not yet emerged. Pre-emergents are meant to be applied in early Spring and late Fall before the weeds have started to actively grow (when temperatures are 60 degrees for 4-5 consecutive days). Please follow instructions per the label. With Floratam St. Augustine grasses being extremely sensitive to post emergent herbicides, weeds that have already broken the surface of the lawn should be removed manually either with a weed whacker or by hand. 

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    13 of 23 people found this answer helpful.
  • Asked by Bill from Ocala, Fl.
    01/22/2015
    Q
    For getting rid of dollar weed in my lawn ?
    The lawn is St, Augustine grass.
    A

    Speedzone Southern is labeled for Dollarweed and for use on St Augustine grass. According to the Speedzone Southern product label: The turf tolerance to this product may vary and temporary turf grass yellowing may occur on St Augustine. Do not apply Speedzone Southern to Floratam, Bitterblue or other improved species of St Augustine. Do not broadcast or spot spray St Augustine during the fall to winter transition or if temperatures are expected to fall below 40F within 10 days of the application.

    Please take a few moments to read through the product label completely for full instructions and other precautions.

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    8 of 9 people found this answer helpful.
  • Asked by Sj from Port St Lucie, Fl
    10/22/2015
    Q
    Is Southern Ag Atrazine Weed Killer for St. Augustine Grass effective against Florida Pulsey?
    A

    Southern Ag Atrazine Weed Killer for St. Augustine Grass is not labeled to treat Florida Pulsey. We cannot recommend it for you. Dismiss is labeled to treat for Florida Pulsey. Please refer to the product label to make sure your Turf Grass is tolerant of this product.

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    7 of 7 people found this answer helpful.
  • Asked by Tim from North Carolina
    03/12/2016
    Q
    Can Southern Ag Atrazine Weed Killer for St. Augustine Grass be tank mixed?
    I have a 100 gallon skid sprayer. Can this be mixed and applied that way? I thought I read .75 ounce to 1000 sq ft. Is this correct?
    A

    Per the product label for Southern Ag Atrazine Weed Killer for St. Augustine Grass the rate is 4.3 oz. per gallon of water per 500 sq. ft.or 1.1 pints in 4 gallons of water to treat 1000 sqft so it could be used in a larger tank as long as you applying to the correct coverage area for the rate you use.

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    7 of 10 people found this answer helpful.
  • Asked by Marshall from Navarre, Fl
    02/16/2017
    Q
    What is the best Post-emergent herbicide to use on Centipede grass?
    I will be applying Dimension 2EW as a pre-emergent this weekend and again about 7 weeks later. But I'd like to know what to use on my centipede to kill what's already grown in.
    A

    Southern Ag Atrazine Weed Killer kills many broadleaf weeds, both emerged weeds and weeds from seeds. It is labeled safe for Centipede as well as St. Augustine.

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    7 of 7 people found this answer helpful.
  • Asked by Corey from Fort Lauderdale, Fl
    07/30/2018
    Q
    Can Southern Ag Atrazine Weed Killer for St Augustine Grass be used on St. Augustine Floratam?
    Temperature above 90* can I spot treat at this temperature?
    A

    Yes, Southern Ag Atrazine Weed Killer for St. Augustine Grasses can be used on St. Augustine Floratam lawns. Do not apply this product when temperatures exceed 90 degrees F to avoid damaging your desirable turf.

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    5 of 5 people found this answer helpful.
  • Asked by Kevin from Naples, Fl
    12/03/2018
    Q
    Can I tank mix Southern Ag Atrazine Weed Killer for St Augustine Grass with Talstar P?
    A

    Southern Ag Atrazine Weed Killer for St Augustine Grass and be tank mixed with an insecticide like Talstar as long the rates and instructions on each product label are followed.  We recommend performing a small jar test for compatibility any time you are using two new products together for the first time. 

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    5 of 5 people found this answer helpful.
  • Asked by Jason from Douglasville, Ga
    04/21/2017
    Q
    Can Southern Ag Atrazine Weed Killer for St. Augustine Grass be used on newly plugged St Augustine grass?
    A

    No, Southern Ag Atrazine Weed Killer for St. Augustine Grass should only be used on established turf. You will need to wait through at least 3 mowings before applying this product. 

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    5 of 7 people found this answer helpful.
  • Asked by Ramon from Miami
    11/01/2018
    Q
    Does Southern Ag Atrazine Weed Killer for St Augustine Grass kill crabgrass ?
    A

    Southern Ag Atrazine Weed Killer for St Augustine Grass is labeled to suppress crabgrass only.

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    4 of 4 people found this answer helpful.
  • Asked by Steven from Frisco, Texas
    03/07/2013
    Q
    Can I use atrazine, 2-4D, and Dicamba at the same time on my pre-spring St. Augustine?
    I have henbit, crabgrass, and spurge (a whole lot of all of them); and my St. Augustine is not perfectly healthy right now. I want to get ahead of the weeds, but I don't want to harm my grass, which is still hibernating. I intend to give the grass some good fertilizer, acidify the soil, and get some iron on it as soon as it wakes up, but when it wakes up, the crabgrass and spurge will happily join the already overflowing henbit and choke my St. Augustine to death.
    A

    Since you mentioned that your St. Augustine grass is not perfectly healthy right now, we are hesitant to recommend that you apply anything as you may cause more harm to your lawn than good.  Herbicide product labels recommend applying products only to healthy lawns, and knowing that St Augustine grass is a sensitive grass we would advise that you contact a local landscaping company or master gardener in your area for the best advice on how to treat while the lawn is not healthy.

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    4 of 10 people found this answer helpful.
  • Asked by Nick from Nc
    05/17/2017
    Q
    Will Southern Ag Atrazine Weed Killer kill ryegrass, tall fescue or bluegrass?
    A

    Southern Ag Atrazine Weed Killer is is formulated specifically for St Augustine and Centipede grasses only and should not be used on any other types of grass as it could be harmful.

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    4 of 14 people found this answer helpful.
  • Asked by Denise from Marion County, Fl
    05/11/2017
    Q
    Is Southern Ag Atrazine Weed Killer for St. Augustine Grass safe for large trees in the lawn?
    Killing weeds-mostly dichonda . I have standard & palmetto St Augustine grass. I do not want to harm my trees. I need products that are inactive in soil.
    A

    Southern Ag Atrazine Weed Killer for St. Augustine Grass can safely be applied to St. Augustine lawns for targeting listed weeds. It should not be applied to trees or over the rooting area of the trees. We are not aware of a product for selective control that is inactive in the soil. Please let us know if you need further assistance. We are happy to help!

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    4 of 4 people found this answer helpful.
Displaying 1 to 20 (of 39 questions)