Bonide Captain Jack's Lawnweed Brew, 128 oz Herbicide Spray, Controls Weeds, Moss, Algae, Lichens
Bonide Captain Jack's Lawnweed Brew, 128 oz Herbicide Spray, Controls Weeds, Moss, Algae, Lichens
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Bonide Captain Jack's Lawnweed Brew, 128 oz Herbicide Spray, Controls Weeds, Moss, Algae, Lichens

3.5 stars out of 93 reviews
(3.5)|
93 ratings

Key item features

  • Convenient Application: This 128 oz (1 gallon) ready-to-use spray comes with an attached trigger sprayer, making it easy to deploy and apply directly to weeds.
  • Iron-Based Formula: The active ingredient is derived from iron, an essential nutrient for plant development, offering a natural approach to weed control.
  • Rapid Visible Results: Users can observe injury to weeds, moss, or algae within hours of application, as treated areas will turn brown or black.
  • Selective Weed Control: Designed to kill a variety of weeds, moss, algae, and lichens, including dandelion, clover, and chickweed, without harming lawn grasses when used as directed.
  • Disease Suppression: Beyond weed control, this product also suppresses various lawn diseases such as dollar spot, rust, and snow mold.
  • Broad Weed Spectrum: Effectively controls a wide range of common lawn weeds, targeting them at the roots for comprehensive elimination.
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Current price is $21.9717.2 ¢/fl oz
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About this item

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Customer ratings & reviews

3.5 out of 5 stars
stars93 ratings73 reviews
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Reviews summary

Pros
  • : Has little to no noticeable scent.
  • : Offers quality at an affordable price.
  • : Sprayer makes application convenient.
Neutral
  • : Can be precise, but may be inconsistent.
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Showing 1-3 of 73 reviews

Jul 29, 2025
Klyzman
Item details
Size: 1 gal
5 out of 5 stars review

Verified Purchase

This product REALLY works! Kills weeds, but NOT the grass. SUPER EASY to apply. And, it's a lot more mild than other herbicides-if you have pets(like me), Captain Jack's is the way to go!

Helpful?3YFLWKWYQMG2575290905
Jun 29, 2025
WalmartCustomer
Item details
Size: 1 gal
5 out of 5 stars review

Verified Purchase

Shopped around pricing and availability first at bricks and sticks, Home Depot, Lowe's, they discontinued this product. Walmart had it reasonably priced and readily available.

Incentivized Review
Helpful?3YFLWKWYQMG2575290905
Jan 21, 2026
Lakeshia
Item details
Size: 1 gal
5 out of 5 stars review

Verified Purchase

I like this weed killer it kills in 5 days

Helpful?3YFLWKWYQMG2575290905