SKU: 41731850878
weed buster herbicide

weed buster herbicide Fiesta Selective Post-Emergent Turf Weed Killer (Pro) – Green Earth Ag & Turf

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Description

weed buster herbicide Fiesta Selective Post-Emergent Turf Weed Killer (Pro) – Green Earth Ag & TurfIron Selective Weed Killers (For Spraying on Turf to Kill Only Weeds) Fiesta Selective Weed Killer is a selective, broadleaf weed killers that kill only the weeds and not the desired turf. Using a specially formulated iron solution, Fiesta is a game changer in the organic lawn care industry, the first effective weed killer that Does Not contain the synthetic weed chemicals 2,4 D or Dicamba. The choice of professional applicators, Fiesta iron based

Iron Selective Weed Killers (For Spraying on Turf to Kill Only Weeds)

Fiesta® Selective Weed Killer is a selective, broadleaf weed killers that kill only the weeds and not the desired turf.  Using a specially formulated iron solution, Fiesta is a game changer in the organic lawn care industry, the first effective weed killer that Does Not contain the synthetic weed chemicals 2,4-D or Dicamba.  The choice of professional applicators, Fiesta iron-based weed killer leaves lawns healthy and weed-free!

Fiesta works quickly, delivering visible same-day results, even in cool weather. With a unique ground breaking iron-based formulation, Fiesta is highly effective and has no unpleasant odor. Pets and people can re-enter the treated area as soon as the spray is dry, the minimal period allowed by the EPA. Suitable for broadcast applications (an entire lawn) or spot treatment, Fiesta helps your lawn look its best without using chemicals that are harsh on human and animal health or the environment. 

The top choice of professionals, we are now excited to offer Fiesta in smaller, more home friendly sizes under the Captain Jack's Lawnweed Brew label.  Now you can treat your own lawn with professional-grade results! 

*Compared to Iron-X™ and Pulverize weed killer for lawns, Fiesta and Captain Jack's Lawnweed Brew are the same formulations available for much lower prices; but with the great technical service from the scientists here in the U.S. at Green Earth Ag & Turf!

Fiesta Benefits

  • Liquid selective herbicide that effectively kills broadleaf weeds in the lawn.
  • Works fast and weed control can be seen in the same day.
  • Three benefits from one application – green-up, post emergent broadleaf weed control, and early post emergent crabgrass control (up to the four-leaf stage) per three years of data from Rutgers University.
  • Made with iron, Does Not contain the synthetic weed chemicals 2,4-D or Dicamba.
  • People and pets can enter treated area when spray dries.
  • No unpleasant odor.
  • Rain-fast in 3 hours.
  • Effective even in cool weather.
  • The exact same product ingredients as Iron X!™ Selective Weed Killer at a fraction of the price!

Fiesta Application Instructions

Large Areas (Broadcast Sprays):

  1. Add 5 oz. of Fiesta per gallon of water.
  2. Apply 2.5 gallons of water per 1,000 sq. ft. (or 12.5 oz. product per 2.5 gallons of water per 1,000 square feet).
  3. Repeat in 3-4 weeks for optimal knockdown of weeds.

Spot Sprays:

  1. Use 5 oz. of Fiesta per gallon of water and spray enough to wet weeds as needed.

    Fiesta General Application Notes:

    • Thoroughly spray weeds to point of runoff.
    • Ensure turf is well watered prior to application.
    • Do not apply when the daytime temperature will be below 50°F or above 85°F.
    • Do not apply to bentgrass.
    • Iron can stain some stone, concrete, clothes, equipment and other such things. Any desirable plants or structures accidentally contacted should be rinsed with water.
    • Do not apply to stressed lawns, such as drought stress.
    • Use standard spray equipment, with a coarse nozzle, such as a hand-held or backpack sprayer.  Hose-End sprayers are not compatible.
    • Repeat treatment in 3 to 4 weeks for best results and a longer-lasting weed kill.
    • Occasionally a darkening of the grass leaf blades can occur; however the grass will recover within a few days to weeks.
    • Allow 3 hours before rain or watering so the product can dry.
    • Do not apply during windy conditions to avoid over-spray.
    • May leave a rusty stain on concrete, pavers or other lightly colored areas; avoid such areas when spraying turf.

    Fiesta Active Ingredients

      Fiesta: 
      Iron HEDTA (FeHEDTA) ............ 26.52%

      Fiesta Available Sizes

      • 1 Gallon (covers 10,000 square feet).
      • 2.5 Gallon (covers 25,000 square feet).
      • 200 Gallon Tote Concentrate (Covers 46 Acres).

      For smaller concentrated and ready-to-use formulas for your selective weed killer needs, check out Captain Jack's Lawnweed Brew Post-Emergent Turf Weed Killer.

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        Home Orders

        Homeowners can now order the same great products that the pros use through our online store by clicking below.  







        Shipping Notes
        • Free Standard Shipping on $100+ Orders to the USA.
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        • Delivery to the USA:
        1. Standard Shipping : 3-10 business days
        • If time is of the essence, please consider selecting expedited delivery for faster service.
        Exchange/Return Notes
        • We offer a 30-day return/exchange service after receiving.
        • Final sale items are not eligible for returns or exchanges.
        • To process your return/exchange, please contact us at [email protected]
        • Please click here for more details>>> Return & Exchange Policy
        SKU: 41731850878

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        4.5 ★★★★★
        Based on 26 reviews
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        Arlin Metzler
        San Leandro, US
        ★★★★★ 1
        Chinese junk
        Number of Items: 4, Style: SILZKAR7B11
        Chinese junk zero stars but that’s not an option
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on May 9, 2026
        D
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        Dustin
        San Leandro, US
        ★★★★★ 5
        Works if you need help. Not a miracle in a bottle.
        Size: 1 Count (Pack of 1)
        It has worked every time I've used this product. Won't fix a damage catalytic converter but will help you pass the test if your car almost passed.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on May 28, 2026
        L
        Verified Purchase
        Leslie Price
        Lake Worth, US
        ★★★★★ 5
        Worked like a charm.
        Size: 1 Count (Pack of 1)
        Used it as directed. Down to an eighth of a tank. Poured it in and added enough gas to get back to one half a tank. Wanted to get it mixed in really well. Immediately jumped on the interstate and ran 75 MPH for 40 miles. Stopped and filled the tank and when I restarted the engine, the light was off. Coincidence? Not a chance. Light had been on continuously for weeks. AutoZone said I needed a catalytic converter. Nope. One thing I found out the hard way. If your gas filler has a flap at the top, make sure it is easy to push aside. Mine had a little release button near the top that the filler hose would depress before the flap would release. Dumped the first bottle right on the ground. Twelve bucks wasted. No one to blame but me, I guess. Still a bargain, even at twice the price.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on February 17, 2026
        B
        Verified Purchase
        Brenda A DeRouen
        Draper, US
        ★★★★★ 1
        Before use on March 15 two days later March 17 engine light still on
        Size: 1 Count (Pack of 1), Size: 1 Count (Pack of 1)
        I read the specs on this product and it was guaranteed to cleanse as well as turn engine light off in vehicle. I received it March 14.2026 and used it on March 15.2026 I took a picture on Sunday before I entered it into the gas tank engine light was on at that time. Today is March 17.2026 and engine light is still on. The truck was driven for one hour on the 15th 45 minutes on the 16th and 50 minutes on 17 March. Still the engine light is on. Got home parked the vehicle took a picture again to show engine light is still on product guaranteed it was shut it off, but unfortunately product does not work.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on March 17, 2026
        A
        Verified Purchase
        Amazon Customer
        Lowell, US
        ★★★★★ 4
        Good stuff
        Size: 1 Count (Pack of 1)
        I've used and it's worked for emissions for me and that's with having check engine light on..use stuff,drive around a bit,clear code drive to emissions and should b good unless got serious problems. It's good to use 1 or 2 times a yr if high mileage vehicle.
        WAS THIS REVIEW HELPFUL?YesReportShare
        Reviewed in the United States on January 1, 2025

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