SKU: 23572469838
organic broadleaf herbicide

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

Sale price$19.57 Regular price$21.74
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Description

organic broadleaf 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!


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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.
      • 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: 23572469838

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      4.1 ★★★★★
      Based on 9 reviews
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      M
      Verified Purchase
      Mallory
      Omaha, US
      ★★★★★ 5
      Works Great Without the Horrible Smell
      Size: 5 Ounce (Pack of 1)
      This bug spray does exactly what it’s supposed to do. It works well for keeping bugs away and doesn’t have that strong, overwhelming smell that a lot of repellents do, which I really appreciate. It’s easy to apply, not greasy, and works well for both adults and kids. Overall, it’s been reliable. Definitely recommend!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on December 31, 2025
      C
      Verified Purchase
      Casey
      Grantham, US
      ★★★★★ 5
      Feels great!
      Size: 5 Ounce (Pack of 1)
      Big spray is never 100% proof, but this gets 5 stars because it’s one of the best bug sprays I’ve used. It doesn’t feel sticky. Women will appreciate this - it doesn’t burn on newly-shaved legs either! The smell isn’t too bad either. I actually bought this because my friend had it while camping in FL a couple weeks ago. We all really liked it.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on July 12, 2025
      W
      Verified Purchase
      Wendy J
      San Leandro, US
      ★★★★★ 5
      Really works for toddler who is allergic to bug bites
      Size: 5 Ounce (Pack of 1)
      My 1 year old grandson was always covered with huge swollen bug bites when I used other bug repellents. Now his skin is clear. Will make you cough if you breathe it in but otherwise quick and easy to use. Scent less and not sticky at all. Can doesn’t seem to last long. Lotion is also good.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on August 18, 2025
      N
      Verified Purchase
      Nick and Lindsey J.
      Louisville, US
      ★★★★★ 4
      Strong Family Protection — With Some Minor Trade‑Offs
      Size: 5 Ounce (Pack of 1)
      I’ve been using OFF! Insect Repellent Aerosol for Adults & Kids (Fragrance‑Free / Picaridin variant, 5 oz) for outdoor family time, and overall it’s been a solid choice. Here’s how it stacks up: 👍 What Works Really Well 1. Good protection, kid‑friendly too The formula is designed for both adults and children ages 1 year and up, when used as directed. For kids between 1 and 10 years, usage is limited (you don’t want to overapply). It does a strong job of keeping mosquitoes, ticks, and biting flies away. We spent hours outdoors and did not come back with a swarm of bites.  2. Feels pleasant — non‑greasy, low residue A big plus: it doesn’t leave skin feeling sticky, oily, or greasy. That’s always a win when you’ve got wiggly kids who won’t sit still for long. The scent is mild (especially in the fragrance‑free version), and it dries fairly quickly. 3. Long enough duration You get about 6 hours of protection against mosquitoes (when applied properly). That’s plenty for a few hours in the yard, a picnic, or a short hike. 4. Easy spray application The aerosol format means you can cover exposed skin and clothing fairly quickly. It’s good for when you need full‑body coverage or you’re applying while kids are wriggly. 👎 What to Be Careful Of / Possible Downsides 1. Must follow directions carefully with young kids Because the product is strong enough for adults, when using on young children (especially 1‑10 years old), it should be applied sparingly and no more than twice per day on kids. Avoid sensitive areas (eyes, mouth, hands). 2. Spray drift / inhalation concerns Some users report that spray fumes are noticeable, and in some cases—especially in confined spaces or windy conditions—the aerosol mist can get in kids’ faces or mouths, which is uncomfortable. Spraying in open air and avoiding spraying near the face helps. 3. Reapplication needed if in heavy perspiration or after swimming Like most insect repellents, you lose effectiveness faster when the skin is wet, or when there’s lot of sweat, or after swimming. So you’ll need to reapply more often under those conditions. Not unique to this product, but worth noting. 4. Aerosol form handling Because it’s aerosol, you’ll want to handle with care. Spray evenness, avoiding over‑spraying, and storing safely are important. Also: don’t let kids handle it by themselves. ⚖️ Verdict If you’re looking for a reliable insect repellent that’s strong enough for adult use and safe enough for kids (1 year+), this OFF! aerosol is one of the better options out there. It hits a nice balance: effective, relatively gentle on skin, and convenient. For families who spend time outdoors — hiking, camping, playing — it’s a worthwhile investment. I’d give it 4 out of 5 stars: loses a bit for aerosol odor and needing care with application, but wins big on protection and usability.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on September 14, 2025
      K
      Verified Purchase
      Kindle Customer
      Dallas, US
      ★★★★★ 5
      Will only keep using this stuff
      Size: 5 Ounce (Pack of 1)
      I have used this brand for quite a while and it works really good for my sensitive skin and it keeps the mosquitoes away
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on January 7, 2026

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