SKU: 25658742888
organic post emergent herbicide

organic post emergent herbicide Captain Jack's Lawnweed Brew Selective Post-Emergent Weed Killer (Home – Green Earth Ag & Turf

Sale price$20.72 Regular price$23.02
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

organic post emergent herbicide Captain Jack's Lawnweed Brew Selective Post-Emergent Weed Killer (Home – Green Earth Ag & TurfIron Selective Weed Killers (For Spraying on Turf to Kill Only Weeds) Captain Jack's Lawnweed Brew (formerly Bonide Weed Beater Fe)* is a selective, broadleaf weed killers that kill only the weeds and not the desired turf. Similar to FIESTA, the specially formulated iron solution in Captain Jack's Lawnweed Brew is a game changers in the organic lawn care industry, a weed killer that does not contain toxic synthetic compounds. The choice of

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

Captain Jack's Lawnweed Brew® (formerly Bonide Weed Beater® Fe)* is a selective, broadleaf weed killers that kill only the weeds and not the desired turf.  Similar to FIESTA, the specially formulated iron solution in Captain Jack's Lawnweed Brew is a game changers in the organic lawn care industry, a weed killer that does not contain toxic synthetic compounds.  The choice of professional applicators, this iron-based weed killer leaves lawns healthy and weed-free, now in small, easy-to-use sizes!

Captain Jack's Lawnweed Brew works quickly, delivering visible same-day results, even in cool weather. With a unique ground breaking iron-based formulation, Captain Jack's Lawnweed Brew 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 application (entire lawn) or spot treatment, Captain Jack's Lawnweed Brew helps your lawn look its best without toxic, environmentally-harsh synthetic chemicals. Now you can treat your own lawn with professional-grade results!

For larger concentrated formulas for your selective weed killer needs, check out FIESTA!

*Compared to Iron-X™ and Pulverize weed killer for lawns, Captain Jack's Lawnweed Brew are the same formulations available for much lower prices; but with the great technical service from the scientists at GrowItNaturally.com!

Bonide Captain Jack's Lawnweed Brew 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 about 1/8 the price!

Bonide Captain Jack's Lawnweed Brew Application Instructions

Bonide Captain Jack's Lawnweed Brew (Concentrate) Application Instructions

Large Areas (Broadcast Sprays):

  1. Add 5 oz. of Weed Beater Fe 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 Weed Beater Fe per gallon of water and spray enough to wet weeds as needed.

Captain Jack's Lawnweed Brew Ready-To-Use Application Instructions

  1. Shake well before use.
  2. Do not dilute.
  3. Thoroughly spray weeds.
  4. Use a coarse nozzle setting to reduce drift.
  5. Repeat treatment in 3 to 4 weeks for best results. 

Bonide Captain Jack's Lawnweed Brew 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.

Bonide Captain Jack's Lawnweed Brew Ingredients

Captain Jack's Lawnweed Brew Ready to Use: 
Iron HEDTA (FeHEDTA) ............ 1.5%

Captain Jack's Lawnweed Brew Concentrate: 
Iron HEDTA (FeHEDTA) ............ 26.52%

    Captain Jack's Lawnweed Brew Available Sizes

    • 1 Quart Ready-To-Use Trigger Sprayer (Coverage Varies by Use).
    • 1 Quart Hose-End Sprayer (Coverage Varies by Use).
    • 1 Gallon Ready-To-Use Sprayers (Coverage varies by Use).
    • 1 Pint Concentrate (Covers 1,250 Square Feet).
    • 1 Quart Concentrate (Covers 2,500 Square Feet).

    For larger concentrated formulas for your selective weed killer needs, check out FIESTA!


      Info

      Labels

      RTU

      Conc.

      SDSs

      RTU

      Conc.

      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.
      • Except Preorder products are shipped in 48 hours.
      • 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: 25658742888

      Discover Niche Categories That Outsell organic post emergent herbicide

      Top-Converting Item to Boost Your Average Order

      4.8 ★★★★★
      Based on 1162 reviews
      Sort
      Highest Rating
      Newest First
      Oldest First
      Product Reviews
      J
      JM
      Dallas, US
      ★★★★★ 5
      Love it
      I really like this handbag. The pebbled leather texture looks elegant and feels good quality. It is small but still fits my daily essentials like phone, wallet, and keys. The top handle gives a classy look, and the adjustable strap makes it easy to wear as a shoulder bag. The magnetic closure is convenient and easy to open and close. It looks stylish for both casual and dressy outfits. I am very happy with this bag.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 14, 2026
      J
      Verified Purchase
      Julie A
      Port Orchard, US
      ★★★★★ 5
      Beautiful, good quality, and perfect size
      Color: Purple, Color: Purple
      I ordered in purple. I absolutely love it. It has three separate sections on the inside and one hidden pocket on the inside. It’s the perfect size to hold everything I need. It has two open pockets. I put my reading glasses in one and my keys in the other. In the middle section, I put my wallet and a small make up bag. And that leaves two other sections for other items like bills, mail, important papers, snacks, you know the really important stuff all women need. Even with items in all three pockets it doesn’t bulge or loose shape. I like the quality of the material and the color is gorgeous. The handles are sturdy with the gold accents that help keep the handles from wearing out. Super cute and I have already ordered another purse by this brand.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on November 30, 2024
      B
      Verified Purchase
      BulbaBabe
      Bozeman, US
      ★★★★★ 5
      Exactly what I was looking for
      Color: Coffee
      I feel like I'm pretty particular about a lot of things I buy, which can lead me on a never-ending search. I recently purchased this bag, and it has quickly become my favorite accessory! The design is both elegant and practical, making it perfect for any occasion. The exterior is crafted from high-quality, durable material that not only looks luxurious but also stands up to daily use. The interior is spacious and well-organized, with multiple compartments that make it easy to keep all my essentials in order. One of the standout features is the comfortable, adjustable strap, which allows me to wear the bag as a shoulder bag or crossbody, depending on my needs. The hardware is sturdy and adds a touch of sophistication to the overall look. The handbag is also incredibly versatile. Its classic design pairs well with both casual and formal outfits, making it a great addition to any wardrobe. Plus, the price is very reasonable for the quality and style it offers. Overall, this handbag has exceeded my expectations. It’s stylish, functional, and well-made, offering excellent value for money. I highly recommend it to anyone looking for a reliable and fashionable handbag!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on October 23, 2024
      D
      Verified Purchase
      Designer
      Los Angeles, US
      ★★★★★ 4
      Classic style and great size
      Color: Black, Color: Black
      The size and style of this bag are exactly what I was looking for — something polished enough for meetings, school conferences, and other business-type occasions. I’m 5'2", and the proportions work really well for my frame. I like the classic design and the gold hardware — it looks stylish without being flashy. The quality seems good so far, but I am a little nervous about the strap brackets since I saw other reviewers mention issues with them breaking. Hopefully, that won’t be a problem. The only downside for me is the three main sections inside. The bag already has plenty of pockets, so having three large compartments makes it a bit harder to remember where I put things. It just takes a little more digging around than I’d prefer. Overall, it’s a beautiful, structured handbag that feels elegant and professional for the price.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on October 15, 2025
      R
      Verified Purchase
      RLW
      Louisville, US
      ★★★★★ 5
      Pleasantly surprised
      Color: White
      Beautiful bag and more spacious than I ihad magined. Great buy!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 18, 2026

      recommand products