---
product_id: 403855828
title: "Bonide Captain Jack's Lawnweed Brew, 128 oz Ready-to-Use Spray, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease"
brand: "bonide"
price: "AR$215762"
currency: ARS
in_stock: false
reviews_count: 8
category: "Bonide"
url: https://www.desertcart.com.ar/products/403855828-bonide-captain-jacks-lawnweed-brew-128-oz-ready-to-use
store_origin: AR
region: Argentina
---

# Selective on lawn grass, kills weeds only Iron-based natural active ingredient Visible weed damage in hours Bonide Captain Jack's Lawnweed Brew, 128 oz Ready-to-Use Spray, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease

**Brand:** bonide
**Price:** AR$215762
**Availability:** ❌ Out of Stock

## Summary

> 🌱 Turn your lawn into the envy of the neighborhood—weed-free, disease-free, effortlessly!

## Quick Answers

- **What is this?** Bonide Captain Jack's Lawnweed Brew, 128 oz Ready-to-Use Spray, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease by bonide
- **How much does it cost?** AR$215762 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/403855828-bonide-captain-jacks-lawnweed-brew-128-oz-ready-to-use)

## 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

- • **Multi-Target Power:** Fights weeds, moss, algae, lichens, and suppresses lawn diseases like dollar spot and rust.
- • **Rapid Action Formula:** See weeds turn brown or black within hours—no more waiting around!
- • **Lawn-Safe Weed Control:** Targets dandelions, clover, moss & more without harming your grass’s lush green vibe.
- • **Ready-to-Use Convenience:** Comes with an easy trigger sprayer—just spray and relax, no mixing needed.
- • **Iron-Derived Active Ingredient:** Harnesses the natural power of iron, essential for plant health, for eco-conscious weed control.

## Overview

Bonide Captain Jack's Lawnweed Brew is a 128 oz ready-to-use spray that quickly controls a broad spectrum of common lawn weeds, moss, algae, lichens, and diseases. Its iron-based active ingredient selectively targets unwanted plants without harming grass, delivering visible results within hours. Designed for professional-quality lawn care with easy application, it’s the go-to solution for millennials seeking a vibrant, healthy lawn that stands out.

## 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: Green lawn…Not green and yellow! - Best way to get rid of dandelions! Does not kill grass. I used to get dandelions out with a weed prong. This was very backbreaking work and if any of the root was left in the ground, the weed would regrow again. I used this weed killing product this spring and yard looks fantastic… No dandelions!
Review: Looking for organic weed killer that works… still looking - Unfortunately, product didn’t work on 95% on my weeds on my lawn. It didn’t come with the sprayer but I had my own wand so I used that. I waited 5 days to see results before posting this review. I Followed all the directions I have dollaweed, dandelions, and clovers on my lawn, most of them lived and the killer didn’t even make a dent. Sad that it didn’t work for me. Hoping this organic based formula would work. I don’t like resorting to dangerous chemicals. I will try something else. Returned

## Features

- CONTROLS WEEDS AND DISEASE - 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 - Injury to weeds can be noticed within hours of application. Treated weeds, moss or algae will turn brown or black.
- SAFE FOR 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 - The active ingredient of Weed Beater Fe is derived from iron. Iron is an essential nutrient to the development and growth of plants.
- READY TO USE - This product is conveniently ready to use when it arrives. Apply directly from the container which is fitted with a trigger sprayer.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09G9HQ8XY |
| Active Ingredients | Iron |
| Best Sellers Rank | #141,224 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #417 in Weed Killers |
| Brand | Bonide |
| Customer Reviews | 3.4 3.4 out of 5 stars (217) |
| Global Trade Identification Number | 00037321026167 |
| Item Form | Spray |
| Item Weight | 8 pounds |
| Item model number | 2616 |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | Bonide Products LLC |
| Product Dimensions | 4.63 x 7.5 x 12 inches |
| UPC | 037321026167 |
| Unit Count | 128.0 Fluid Ounces |

## Product Details

- **Active Ingredients:** Iron
- **Brand:** Bonide
- **Item Form:** Spray
- **Item Weight:** 128 Ounces
- **Liquid Volume:** 128 Fluid Ounces

## Images

![Bonide Captain Jack's Lawnweed Brew, 128 oz Ready-to-Use Spray, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease - Image 1](https://m.media-amazon.com/images/I/41+Ab1OPCHL.jpg)
![Bonide Captain Jack's Lawnweed Brew, 128 oz Ready-to-Use Spray, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease - Image 2](https://m.media-amazon.com/images/I/41Qzu-MgSeL.jpg)
![Bonide Captain Jack's Lawnweed Brew, 128 oz Ready-to-Use Spray, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease - Image 3](https://m.media-amazon.com/images/I/41hCq6MK2rL.jpg)
![Bonide Captain Jack's Lawnweed Brew, 128 oz Ready-to-Use Spray, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease - Image 4](https://m.media-amazon.com/images/I/41s2RJKcUQL.jpg)
![Bonide Captain Jack's Lawnweed Brew, 128 oz Ready-to-Use Spray, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease - Image 5](https://m.media-amazon.com/images/I/51BLdEFSbEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Green lawn…Not green and yellow!
*by A***R on May 11, 2025*

Best way to get rid of dandelions! Does not kill grass. I used to get dandelions out with a weed prong. This was very backbreaking work and if any of the root was left in the ground, the weed would regrow again. I used this weed killing product this spring and yard looks fantastic… No dandelions!

### ⭐ Looking for organic weed killer that works… still looking
*by J***E on March 26, 2022*

Unfortunately, product didn’t work on 95% on my weeds on my lawn. It didn’t come with the sprayer but I had my own wand so I used that. I waited 5 days to see results before posting this review. I Followed all the directions I have dollaweed, dandelions, and clovers on my lawn, most of them lived and the killer didn’t even make a dent. Sad that it didn’t work for me. Hoping this organic based formula would work. I don’t like resorting to dangerous chemicals. I will try something else. Returned

### ⭐⭐⭐ It works but you need alot
*by N***H on May 22, 2025*

It’s to bad there isn’t a more concentrated version for a hose or something. I had to use both bottles for 1500sqft and it didn’t even kill everything. I had to do multiple passes on all of the weeds. It did work within an hour, I did notice some browning of the weeds and haven’t came back yet but it’s still overpriced and the fact has to use both bottles for it work is insane

## Frequently Bought Together

- Bonide Captain Jack's Lawnweed Brew, 128 oz Ready-to-Use Spray, Fast-Acting Formula Controls Weeds, Moss, Algae, Lichens & Disease
- Bonide Captain Jack's Deadweed Brew, 32 oz Ready-to-Use Spray, Controls All Types of Weeds and Grasses, For Organic Gardening
- Bonide Captain Jack's Deadweed Brew, 32 oz Concentrate, Controls All Types of Weeds and Grasses, For Organic Gardening

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-05-19*