SKU: 61938419928
fatty acid herbicide

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

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Description

fatty acid 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:
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        • 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: 61938419928

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        Renee M.
        Belleville, US
        ★★★★★ 3
        shirt is thin, sizing is useless
        The shirt is thin but okay. The sizing is useless. I purchased a large and a medium. Each is marked with the size (L and M), but the two shirts are exactly the same size. Laid flat together or held up by the shoulders together, these two shirts are EXACTLY the same.
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        Reviewed in the United States on November 27, 2025
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        Joe Garnace
        Lowell, US
        ★★★★★ 5
        Fun Christmas Sweatshirt
        Color: 02 Green, Size: Large
        I really like this sweatshirt. It was listed as men's so I ordered the large. The sleeves are pretty long, which I really like. Otherwise it fits slightly baggy, but I typically wear a women's large so I ordered the large hoping for a little bit oversized. The material is typical for what a normal sweatshirt is, but is a little more lightweight, which I like. It being a touch thinner allows for easier layering and not peeling it off halfway through the day. The graphic is nice, the colors are bold and crisp. I love Christmas and love having tons of different themed clothing to wear, so I'm super excited to add this to my stash.
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        Reviewed in the United States on October 16, 2025
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        Lloyd S.
        Lowell, US
        ★★★★★ 5
        Great
        This Holiday sweatshirt is great, It's made great with soft materials. It fits perfectly not tight and not bulky. It's warm and can be worn over a t-shirt or a long sleeve shirt when it's cold outside. It doesn't twist or ride up. The design is well made and looks great. The colors are bright and look nice. It's great for the holidays but after they're over I'm going to keep wearing this because I like it. It's a great price because with proper care this sweatshirt will last for a long long time.
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        Reviewed in the United States on October 14, 2025
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        Carl
        Waukegan, US
        ★★★★★ 5
        great
        Size: X-Large, Color: White
        Great product, great price, I'm very happy with it!! it fits and looks great
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        Reviewed in the United States on May 21, 2026
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        Maria Garcia
        Pawtucket, US
        ★★★★★ 5
        Quality Shirt!
        Size: Medium, Color: Black Orange
        A good quality shirt with an embroidered pattern. The fit was right on the arms and shoulders but ran big in the waist area. The fit really depends on your build. The price was fair for this quality, highly recommend!
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        Reviewed in the United States on May 11, 2026

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