SKU: 20413855925
caprylic acid herbicide

caprylic acid herbicide Captain Jack's Deadweed Non-Selective Weed Killer (Home Use) – Green Earth Ag & Turf

Sale price$24.17 Regular price$26.86
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Description

caprylic acid herbicide Captain Jack's Deadweed Non-Selective Weed Killer (Home Use) – Green Earth Ag & TurfCaptain Jack's Deadweed Brew (Formerly BurnOut Formula II ) is a patented fast acting weed, grass, algae, and moss killers that represent a new class of products for organic weed control that do not contain glyphosate or other toxic chemicals! Utilizing concentrated and potent and non staining fatty acids (soaps), Captain Jack's Deadweed Brew is a non selective herbicides and the best new top of the line technology for fast acting and through killing

Captain Jack's Deadweed Brew® (Formerly BurnOut Formula II® ) is a patented fast-acting weed, grass, algae, and moss killers that represent a new class of products for organic weed control that do not contain glyphosate or other toxic chemicals!  Utilizing concentrated and potent and non-staining fatty acids (soaps),  Captain Jack's Deadweed Brew is a non-selective herbicides and the best new top-of-the-line technology for fast-acting and through killing or suppression of many common annual, biennial, and perennial weeds, algae and mosses. A great organic product for use when conventional herbicides are banned or not desired!

For a larger, concentrated formula, with the same great results, check out FINALSAN!

How Does Captain Jack's Deadweed Brew Work?

Herbicidal soaps work by penetrating the waxy cuticle of plants, causing the plant to dehydrate and die. The active ingredients accumulate in plants and cause intracellular damage, leading to cell death. Activity is non-selective and will kill plants the soap comes into contact with, but will not translocate to underground portions of the plant or harm the bark of mature, woody plants.  Can be safely sprayed around the base of trees, shrubs, hops, grapes without worry.  

Use on weeds within vegetable and flower gardens, landscaped areas, lawns (for spot treatment only), in the vicinity of small fruits and fruit trees, around and on buildings, sidewalks, fences, bark mulch, driveways, patios and gravel.  Use on moss and algae, around and on buildings, roofs, decks, sidewalks, fences, bark mulch, driveways, patios and gravel. Finalsan can even be used in cool weather. Areas can be planted five days after treatment.

Captain Jack's Deadweed brew reduces tree toxicity risks and leaves no harmful residue in the soil. It won’t stain bricks, concrete or asphalt and people and pets can re-enter areas once spray dries.

Captain Jack's Deadweed Brew Benefits

  • Great alternatives to conventional herbicides such as glyphosate!
  • Fast acting - visible results within hours!
  • Listed "For Organic Gardening".
  • Highly biodegradable, will not affect woody parts of plants - great for spraying at the base of trees or bushes; perfect for vineyards or for hops growers!
  • Dissipates quickly.
  • Does not stain brick, concrete or pavement.
  • No unpleasant odor as with other acid fatty acid products.
  • EPA registered & approved.
  • Quick reentry and no harmful residues.
  • Kill weeds without worrying about children, pets, animals or the environment!

Captain Jack's Deadweed Brew Application Instructions

Captain Jack's Deadweed Brew Concentrate:

  • Small Easy To Kill Weeds:  Use a 3% solution (4 oz. per gallon).
  • Larger Established Weeds: Use a 6% solution (8 oz. per gallon).
  • For Tougher to Kill Weeds, Vines, Brush and Sucker Control: Use a 9% solution (12 oz. per gallon).

Apply 2.5 gallons  of the diluted solution per 1,000 square foot (3 to 9 oz. per square yard).


Application Notes for Captain Jack's Deadweed Brew:

  • Damage will be visible within an hour to 2 days after spraying.
  • Repeat treatment every 2 to 3 weeks to control new weeds growing from seed and re-growth from bi-annual and perennial weeds.
  • Avoid spraying desirable plants or any over-spray.
  • Products can be applied in cold weather (55°F or above) when other organic weed killers may not work.
  • Can be used around pets and wildlife.

Captain Jack's Deadweed Brew Active Ingredients

    Captain Jack's Deadweed Brew Ready-To-Use:

    • Caprylic Acid (C8 Fatty Acid) ........... 2.62%
    • Capric Acid (C10 Fatty Acid) ............ 2.17%

    Captain Jack's Deadweed Brew Concentrate:

    • Caprylic Acid (C8 Fatty Acid) .......... 44%
    • Capric Acid (C10 Fatty Acid) ........... 36%

    Captain Jack's Deadweed Brew Available Sizes

    • 1 Quart Ready-To-Use (As Needed).
    • 1 Gallon Ready-To-Use (As Needed).
    • 1 Pint Concentrate (Covers 520 to 1,600 sq. ft.).
    • 1 Quart Concentrate (Covers 1,040 to 3,200 sq. ft.).

    For a larger, concentrated formula, with the same great results, check out FINALSAN!

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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: 20413855925

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      Lisa Hill
      Draper, US
      ★★★★★ 1
      Easily destructible
      NOT for aggressive dog. My Boston Terrier is a chewer and had this destroyed in a few hours and it is a choking hazard. I threw it away the same day!!! Do not purchase if your pet is a chewer!!!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on December 27, 2024
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      Verified Purchase
      The Wingman
      Waukegan, US
      ★★★★★ 5
      Works fantastic.
      Works great. I have 2 little dog. Both part min pin. But they can chew. They have tartar and I am trying everything to help them, with powder in the food, and a liquid for the water. That's been helping but they will not let us brush their teeth. SO I know they love bones, but I didn't want them to keep eating them, like the ones for fresh breath and cleaning the teeth. They just eat them and get fat. WELL, these bone here that I bought, are fantastic!!. I only stick a few treats inside the seams and middle and they both chew away getting only a little treat at a time bit they have to work for it. So now they chew longer and get very little treats. Yes, my dogs can chew and they have already done some damage on this bones, but for the price and what it does, Its a win win. I will try to get a video or pics later.
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      Reviewed in the United States on August 10, 2025
      P
      Verified Purchase
      Pepper Ann
      Massapequa, US
      ★★★★★ 3
      Good Product But I Need Something Indestructible
      These were advertised for aggressive chews, but my 2 mini schnauzers puppies quickly bit off the little prongs within an hour. I didn't put food inside them; I just wanted them for chew toys. Well, they were not hard enough for them. The size was perfect for puppies, but they were not durable enough for my 'heavy' chewers. I hate I can't find chew toys they can't destroy! Now they bring in sticks and mess the house up.
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      Reviewed in the United States on April 28, 2025
      B
      Verified Purchase
      Bricksey
      Louisville, US
      ★★★★★ 4
      Works great with toothpaste.
      They lasted longer than most toys but eventually my dog was able to tear them up.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 22, 2023
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      Verified Purchase
      sue mulligan
      Alexandria, US
      ★★★★★ 5
      Tough toys
      The dogs really enjoy chewing on these toys. Very sturdy and you can put treats inside for lasting pleasure
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on January 13, 2026

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