halcyon herbicide Finalsan Organic Non-Selective Weed Killer (Pro Turf) – Green Earth Ag & TurfOMRI Listed Finalsan 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), Finalsan 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

OMRI Listed

Finalsan^® 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), Finalsan 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!

We are now excited to offer Finalsan in smaller, more home friendly sizes under the Captain Jack's Deadweed Brew label! Now you can treat your own lawn with professional-grade results!

Why is Finalsan the Best Natural Weed Killer?

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.

Finalsan 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.

Finalsan Benefits

• Great alternatives to conventional herbicides such as glyphosate!
• Fast acting - visible results within hours!
• Organic Materials Review Institute (OMRI) listed product.
• 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!

Finalsan Application Instructions

Finalsan Concentrate: 

• Small Easy to Kill Weeds: Add 1 Part Finalsan to 9 Parts Water (12.8 Ounces of Finalsan per Gallon of Water) for a 10% solution.
  
• Larger Established Weeds: Add 1 Part Finalsan to 6 Parts Water (21 Ounces of concentrated product per gallon of water) for a 16.7% solution.
• Algae and Moss: Add 1 Part Finalsan to 19 Parts Water (6.4 Ounces of concentrated product per gallon of water) for a 5% solution.

Apply 2 Gallons of the diluted solutions per 1,000 square feet.

Application Notes for Finalsan:

• 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.

Finalsan Active Ingredients

• Ammoniated Soap of Fatty Acids ........ 22%

Finalsan Available Sizes

• 2.5 Gallon Concentrate, Finalsan (Covers 18,800 sq. ft.).
• 250 Gallon Concentrate Tote, Finalsan (Covers 43 acres).

For smaller concentrate or ready-to-use sizes, check out Captain Jack's Deadweed Brew!

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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.