SKU: 84578264997
bioweed herbicide

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

Sale price$26.60 Regular price$29.55
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Description

bioweed 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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      • Free Standard Shipping on $100+ Orders to the USA.
      • Except Preorder products are shipped in 48 hours.
      • Delivery to the USA:
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      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]
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      SKU: 84578264997

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      4.2 ★★★★★
      Based on 11 reviews
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      K
      Verified Purchase
      Karen Brewer
      New York, US
      ★★★★★ 3
      Love the idea!
      Size: 6 Pieces, Size: 6 Pieces
      Love the idea of this product! Arrived 3/25/2026 and started using it the same day. Lab puppies (8 months old) loved it too, until one of the tabs was chewed off 😞 One of the puppies ate something (not this product) last week and was sick & finally threw up the rubber pieces he ate. So they can’t use the toys they love!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 1, 2026
      G
      Verified Purchase
      Gabby
      Port Orchard, US
      ★★★★★ 5
      Get 8 pack for bigger / stronger dogs
      Size: 6 Pieces, Size: 6 Pieces
      This is the best puzzle toy i have found for my GSD mix. All around high quality product 10/10. Thick, durable rubbery material that holds up against a strong chewer. Individual pieces are big and bulky enough that i don’t have to worry about my bigger dog accidentally (or intentionally) swallowing a piece, so i don’t need to supervise. That being said, if you have a bigger dog or a strong chewer, i HIGHLY recommend getting the 8 pack if you actually want to keep them busy for more than 20 mins consistently. Bigger dogs just have more leverage to tug on the pieces because obviously…they are bigger, so its just easier for them. The more pieces you add and more tangled/thicker you can make it, the less leverage they have and the harder it is for them to get a good grip. I have a german shepherd/pitbull mix (big boi, v smart, v strong) and i initially got the 4 pack which, after the first few times, only took him about 5 mins to get all the pieces apart even with level 5 connections. So I ordered an additional 6 pieces (i have a total of 10 pieces now) so i could make it harder for him and it was totally worth it. Now I use 8 pieces with level 5 connections and vital essentials freeze dried beef liver treats inside for my GSD and it consistently takes him 30+ mins to get the whole thing apart. I have timed this lol. I can rebuild the 8 pieces multiple different ways to make it more or less challenging (but i always opt for as difficult as possible to keep him entertained for as long as possible) I use the other two pieces with a level 1 or 2 connection for my other dog- bordercollie mix who is not a very strong chewer, he mostly just rolls it around/ licks it until it finally opens or i help him. Both of my dogs are obsessed with this. And i love watching them try to figure it out.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 7, 2026
      C
      Verified Purchase
      Cassandra DeSpain
      Grantham, US
      ★★★★★ 5
      Awesome Tough Chewer Focus Puzzle
      Size: 8 Pieces, Size: 8 Pieces
      Our 2 yr old busy Mini Goldendoodle (24lbs) looooves this! The material is super tough, yet malleable; he has chewed away and you can’t even tell. We got the 8 pack, worth it! I load them all up with mostly kibble and a treat or two. It took just a short time for him to figure out how to really get it apart. On 1 it came apart really easy for him. We are mostly on 3s, with 2s. When he gets down to only 2 pieces connected it’s usually a 3 and it takes a little longer to get apart due to less leverage. It is mostly easy to use but the higher the plug end is, the more effort it will also take for YOU to get it together. The numbers are a little hard to see, more so on the yellow over the blue. If you use kibble like me, don’t fill it too full as then it won’t connect fully and be prepared for kibble to fly everywhere when they finally get it off. There are holes in the plug part, if you put something in it like peanut butter, remember to poke the holes out! Eew! Other than that they are fairly easy wash out in the sink! Overall, this has become our go to, extended focus, quiet time, [essentially a] slow feeder!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 24, 2026
      J
      Verified Purchase
      Juno
      Grantham, US
      ★★★★★ 5
      Great!
      Size: 4 Pieces
      I have a mini Australian Shepherd (37 lbs) and she loves this! She can get level one but has a tougher time with level 2. I have tried 3 but she gives up so she hasn't gotten further than that lol. She is quite stubborn and gives up easy if she can't figure something out and is totally over it. The quality is great as it is thick and not easy to destroy. My fur baby does love it, she seems to think it is fun for at least an hour so it is worth it in my eyes. There are times I have to do something that takes longer and I just can't play with her so this is perfect for her. It was definitely worth the money
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on July 16, 2025
      E
      Verified Purchase
      Elle Zena
      Cuba, US
      ★★★★★ 5
      Keeps Aussie Entertained for Hours
      Size: 4 Pieces, Size: 4 Pieces
      This puzzle toy has quickly become one of my dog’s favorite sources of entertainment. It keeps him busy, challenged, and happy. The variety of difficulty levels gives him a challenge, and it is so fun to watch him work through the puzzles. Even when he is just playing with individual pieces, he is entertained. It is also very user-friendly. Setup is simple, and it is not overly complicated for the owner to manage. Cleaning is surprisingly easy, too. The pieces wipe down well, and nothing traps food or slobber, which is a huge win compared to some other toys we have tried. Functionality-wise, it is fantastic. The levels of difficulty actually work as intended, and I like being able to adjust them based on my dog’s mood. It is durable, too. The weight and sturdiness of the pieces keep them from sliding around too much during play, and they are tough enough to withstand my Aussie’s powerful chewing without damage. I also like how it is numbered so you can quickly move onto the next level without too much thought. With that, I have noticed the higher levels are challenging, and my Aussie has yet to get through them all. Eventually he gets bored and stops trying. It is a high-quality, fun, and engaging toy that provides mental stimulation, holds up to rough play, and is easy for me to maintain. Definitely one of the best puzzle toys I have tried!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on August 19, 2025

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