Captain Jack's Lawnweed Brew Concentrate

Captain Jack's Lawnweed Brew Concentrate, manufactured by Bonide, is an iron-based concentrate solution that ensures effective and eco-friendly management of weeds, diseases, moss, algae, and lichens resulting in more beautiful, and lush lawns. 

With simple mixing instructions and a fast-acting formula, this product is accessible to turf owners of all skill levels. For further ease, Captain Jack's Lawnweed Brew Concentrate is selective in its form of control helping to avoid turf injury while still eliminating unwanted vegetation effectively. 

Captain Jack's Lawnweed Brew Concentrate provides excellent value, allowing applicators to treat large properties and visible results of control within hours of treatment. 

Tools Needed

It can be applied with a handheld pump sprayer or backpack sprayer.

How to Use

• Step 1: Determine how much Captain Jack's Lawnweed Brew Concentrate to use by measuring the treatment area's square footage. Find the square footage by measuring the treatment area's length and width in feet, then multiply them together (length X width = square footage). For spot treatments, mix 5 fl. oz. of Captain Jack's Lawnweed Brew Concentrate with 1 gallon of water. A general application will use 5 fl. oz. of product with 1 gallon of water - this mixed solution should be applied at the rate of 2.5-10 gallons per 1,000 sq. ft. For pre-emergent weed control, mix 5 fl. oz. of product with 1 gallon of water then apply this mixed solution at the rate of 5-10 gallons per 1,000 sq. ft. Do not apply to the same area more than 4 time a year.
• Step 2: Fill the spray tank with half the amount of water, add the measurement amount of product, and pour in the remaining half of the water. Close the spray tank lid and shake until the solution is mixed.
• Step 3: Thoroughly spray weeds and turf to the point of runoff. Repeat treatment in 3 to 4 weeks for best results. Do not irrigate within 3 hours of application.

Where to Use

Captain Jack's Lawnweed Brew Concentrate can be used in lawns. 

When to Use

For pre-emergent control of weeds, apply when soil temperatures reach 50-55 degrees Fahrenheit. Reapply 3-6 weeks later for best results. 

For general applications, apply when the daytime temperature is below 85 degrees Fahrenheit.

Treated lawns can be reseeded 1 day after application. 

Do not apply to newly seeded areas prior to grass seed germination.

Safety Information

Captain Jack's Lawnweed Brew Concentrate is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product. 

People and pets can enter the treated area when the spray has dried.

Special Considerations

Occasionally a darkening of the grass leaf blades can occur after treatment; however, the grass will recover within a few days to weeks. May stain thatch (dead grass under lawn); this does not affect the health of the grass.