---
product_id: 404400269
title: "Bonide Captain Jack's Lawnweed Brew, 32 oz Concentrate, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease"
brand: "bonide"
price: "₩73478"
currency: KRW
in_stock: true
reviews_count: 8
category: "Bonide"
url: https://www.desertcart.kr/products/404400269-bonide-captain-jacks-lawnweed-brew-32-oz-concentrate-fast-acting
store_origin: KR
region: South Korea
---

# Selective iron-based formula nourishes lawn grass Concentrated 32 oz for multiple spray applications Fast-acting formula shows results in hours Bonide Captain Jack's Lawnweed Brew, 32 oz Concentrate, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease

**Brand:** bonide
**Price:** ₩73478
**Availability:** ✅ In Stock

## Summary

> 🌱 Transform your lawn fast—because your grass deserves the VIP treatment!

## Quick Answers

- **What is this?** Bonide Captain Jack's Lawnweed Brew, 32 oz Concentrate, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease by bonide
- **How much does it cost?** ₩73478 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/404400269-bonide-captain-jacks-lawnweed-brew-32-oz-concentrate-fast-acting)

## Best For

- bonide enthusiasts

## Why This Product

- Trusted bonide brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lawn-Friendly Iron Formula:** Kills weeds and diseases without harming your grass, thanks to its plant-nutrient iron base.
- • **Easy Mix & Spray Application:** Instantly dissolves in water and works seamlessly with backpack or knapsack sprayers for precise spot treatment.
- • **Rapid Weed & Disease Control:** See dandelions, moss, and algae turn brown or black within hours—no more waiting around.
- • **Sustainable Lawn Care Upgrade:** Avoid harsh chemicals—embrace a natural, iron-derived solution that fits your eco-conscious lifestyle.
- • **Versatile Multi-Target Action:** Controls over a dozen common lawn invaders including dandelion, clover, moss, algae, and even lawn diseases like dollar spot.

## Overview

Bonide Captain Jack's Lawnweed Brew is a 32 oz concentrated, iron-based lawn treatment that selectively kills weeds, moss, algae, lichens, and suppresses common lawn diseases. Its fast-acting formula delivers visible results within hours while nourishing your grass, making it ideal for professional-grade lawn care with an eco-friendly edge.

## Description

Derived from Iron, Captain Jack's Lawnweed Brew offers selective control of weeds, disease, moss, algae, and lichens in lawns. The active ingredient is derived from iron, which occurs in nature. Kills many common weeds like dandelion, clover, moss, narrow-leaved plantain, chickweed, and thistle. Works quickly, as dying weeds will be seen within hours of application.

Review: Works great! Here's my method. - This saved us from being overrun by dandelions! We haven't used herbicides for over a decade because of how toxic most are. We were trying to weed dandelions in our grass by hand. We couldn't keep ahead of their spread! (And it was so much work!) I've been using this product since spring of this year and it's now late summer. I spot spray the dandelions in our lawn and in our periwinkle. I really saturate each dandelion. We are making great progress! Our lawn looks much nicer. I'm using a two gallon pump sprayer. I also bought a hose sprayer that mixes as you spray for our rental house where the yard is FULL of dandelions. (But I haven't tried it yet.) With spot spraying I find I need to go around and check ideally sometime between 12 hrs and 2 days for dandelions that aren't fully dying. I spray those again. Often one spray kills the dandelions, two times almost always does. But there may be some extra hardy ones that need to be sprayed more times depending on how well established they are. I think once we get the dandelions eradicated I'll need to do my method twice a year to maintain a dandelion free yard. I'm hoping I'll only need to spray each one one time at that point since they won't be established. I try to spray when it won't rain for at least a couple days and also pause our sprinklers from the time I start spraying until a couple days after my final spray. Also I go around and grab any flowers left behind after a day or two so they won't re-seed. (Especially the ones that ripened after spraying.) They're easy to grab because the stalks rot after spraying. Also watch the temperature. This spray works best when it's between 60-80 degrees outside and where the temperature will stay in that range for at least a few hours after you spray. The pores on the leaves close at hotter/cooler temps and this product must absorb through the leaves. I feel like the lawnweed brew actually kills dandelions better than the deadweed brew, although the deadweed brew works on a lot more weeds and works really well and really fast. (It kills all plants, though, so you can't use it in your lawn without killing the grass.) Also if you spot spray you will have black spots in your grass for a while after you spray until the grass recovers. After that it'll be healthy and beautiful!
Review: Use 6 oz to 1 gallon of water ! - The first time I used this product I did not get very good results. The little measuring cup that comes with the bottle is a little hard to read and I think I did not add the full 6 oz to 1 gallon of water. The second time I used it.......Shake the bottle before measuring. I measured 6 oz in a glass measuring cup. Added it to 1 gallon of water in the pump up sprayer. Added 1 teaspoon of dish washing soap to act as a wetting agent to help the solution sting to the weeds. Gave the pump up sprayer a couple of shakes to mix everything. Pumped up the sprayer and sprayed my weeds I did not see same day results, but in 2 of 3 days what I sprayed was blackened and dying. I really like the results. It did not kill my St Augustine lawn, just made it greener and it killed all the weeds ! I am in south Texas and we have a 10 month+ growing season, and weeding never ends. Love this stuff. Next my son is going to try this on his dandelions in Madison Wisconsin. I will report back on his results. Cheers!

## Features

- CONTROLS WEEDS AND DISEASE - Use to control dandelion, moss, algae, lichens, chickweed, oxalis, clover, ground ivy and more. It also suppresses diseases such as dollar spot, rust, snow mold plus many more.
- QUICK RESULTS - Cure your weed, moss, and disease within hours of application. Treated weeds, moss or algae will turn brown or black.
- FOR USE ON GRASS - Designed to kill a variety of weeds and diseases, not lawn grasses. When used as directed it kills a variety of weeds in lawns, roots and all.
- DERIVED FROM IRON - Iron is an essential nutrient to the development and growth of plants.
- EASY SPRAY APPLICATION - Product instantly mixes with water and should be applied with a backpack, compression, or knapsack sprayer. Carefully read and use according to label directions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09G9FP9WQ |
| Active Ingredients | See Label |
| Best Sellers Rank | #39,668 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #190 in Weed Killers |
| Brand | Bonide |
| Customer Reviews | 4.1 4.1 out of 5 stars (233) |
| Department | Unisex-Adult |
| Item Form | Concentrate |
| Item Weight | 2.08 pounds |
| Item model number | 2611 |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Bonide Products LLC |
| Product Dimensions | 2.25 x 4.88 x 9.5 inches |
| UPC | 037321026112 |
| Unit Count | 32.0 Ounce |

## Product Details

- **Active Ingredients:** See Label
- **Brand:** Bonide
- **Item Form:** Concentrate
- **Item Weight:** 33.28 Ounces
- **Liquid Volume:** 32 Fluid Ounces

## Images

![Bonide Captain Jack's Lawnweed Brew, 32 oz Concentrate, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease - Image 1](https://m.media-amazon.com/images/I/51ESbbP5vjL.jpg)

## Questions & Answers

**Q: Has anyone successfully used this to eradicate creeping charlie from a lawn?  I find it seems to work on everything but creeping charlie.**
A: I actually returned this stuff. It didn't kill anything on my lawn.

**Q: Is this product considered organic?**
A: As far as I know, yes.

**Q: Has anyone had success l I’m this to kill thistles?**
A: I’m using it for Japanese Clover(Lespedeza) and it works great!

**Q: With this get rid of corn speedwell in the lawn?**
A: I don’t know what that is - it got rid of my clover and creeping Charlie, though - and did not kill the grass just the weed

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great! Here's my method.
*by K***L on September 5, 2024*

This saved us from being overrun by dandelions! We haven't used herbicides for over a decade because of how toxic most are. We were trying to weed dandelions in our grass by hand. We couldn't keep ahead of their spread! (And it was so much work!) I've been using this product since spring of this year and it's now late summer. I spot spray the dandelions in our lawn and in our periwinkle. I really saturate each dandelion. We are making great progress! Our lawn looks much nicer. I'm using a two gallon pump sprayer. I also bought a hose sprayer that mixes as you spray for our rental house where the yard is FULL of dandelions. (But I haven't tried it yet.) With spot spraying I find I need to go around and check ideally sometime between 12 hrs and 2 days for dandelions that aren't fully dying. I spray those again. Often one spray kills the dandelions, two times almost always does. But there may be some extra hardy ones that need to be sprayed more times depending on how well established they are. I think once we get the dandelions eradicated I'll need to do my method twice a year to maintain a dandelion free yard. I'm hoping I'll only need to spray each one one time at that point since they won't be established. I try to spray when it won't rain for at least a couple days and also pause our sprinklers from the time I start spraying until a couple days after my final spray. Also I go around and grab any flowers left behind after a day or two so they won't re-seed. (Especially the ones that ripened after spraying.) They're easy to grab because the stalks rot after spraying. Also watch the temperature. This spray works best when it's between 60-80 degrees outside and where the temperature will stay in that range for at least a few hours after you spray. The pores on the leaves close at hotter/cooler temps and this product must absorb through the leaves. I feel like the lawnweed brew actually kills dandelions better than the deadweed brew, although the deadweed brew works on a lot more weeds and works really well and really fast. (It kills all plants, though, so you can't use it in your lawn without killing the grass.) Also if you spot spray you will have black spots in your grass for a while after you spray until the grass recovers. After that it'll be healthy and beautiful!

### ⭐⭐⭐⭐⭐ Use 6 oz to 1 gallon of water !
*by S***P on April 19, 2024*

The first time I used this product I did not get very good results. The little measuring cup that comes with the bottle is a little hard to read and I think I did not add the full 6 oz to 1 gallon of water. The second time I used it.......Shake the bottle before measuring. I measured 6 oz in a glass measuring cup. Added it to 1 gallon of water in the pump up sprayer. Added 1 teaspoon of dish washing soap to act as a wetting agent to help the solution sting to the weeds. Gave the pump up sprayer a couple of shakes to mix everything. Pumped up the sprayer and sprayed my weeds I did not see same day results, but in 2 of 3 days what I sprayed was blackened and dying. I really like the results. It did not kill my St Augustine lawn, just made it greener and it killed all the weeds ! I am in south Texas and we have a 10 month+ growing season, and weeding never ends. Love this stuff. Next my son is going to try this on his dandelions in Madison Wisconsin. I will report back on his results. Cheers!

### ⭐⭐⭐⭐ Kind of Works on Clover
*by A***R on May 16, 2025*

Used specifically for clover. It kind of worked but did not completely kill. Some sections the clover turned black and died and other sections it did nothing. I’ve read that the clover needs to be young, once it matures this stuff may not work as well.

## Frequently Bought Together

- Bonide Captain Jack's Lawnweed Brew, 32 oz Concentrate, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease
- Hi-Yield Voluntary Purchasing Group 31062 Spreader Sticker, 16 oz

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-25*