Alligare Diquat Herbicide - 128oz Fast-Acting Pond & Landscape Control

In this review of Alligare Diquat Herbicide - 128oz, the bottom line is straightforward: it is for property owners and pond managers who need a fast, contact-action herbicide that kills actively growing green plant tissue quickly. Our review found the formulation particularly useful as a non-residual, non-selective option when a rapid burndown is required and when fish safety in treated waters is a concern. It works as an alternative to glyphosate for annual weed control and delivers visible results within hours to a few days, making it a useful tool for quick cleanup and targeted aquatic weed work.

Key Features

• Fast contact action: Kills actively growing green plant tissue on contact for rapid visible burndown, often within hours or days.
• Glyphosate alternative: Can be used where users prefer a non-glyphosate approach for annual weed control in landscapes and certain aquatic sites.
• Non-residual: Leaves little to no lasting soil residue, so it is suited to applications where long-term chemical persistence is undesirable.
• Highly active and non-selective: Controls a wide range of weeds quickly, making it effective for broad cleanup and dense infestations.
• Suitable for aquatic use: Labeled for a variety of aquatic environments and noted by customers for effective pond and duckweed control while being safe for fish when used per directions.

Who It's For

Landscape professionals, pond managers, and homeowners with persistent surface weeds or duckweed will find this product valuable. It is best for situations that need a rapid burndown of actively growing plants and where a non-residual, contact herbicide is preferred to avoid long-term soil activity.

It is less appropriate for users seeking a selective long-term preemergent solution or those who need systemic translocation for deep-rooted perennial control; in those cases a different mode of action or an alternative product would be a better match.

Pros & Cons

Pros

• Fast visible results make it useful for quick cleanup and timely site preparation.
• Effective on aquatic weeds and duckweed, with positive customer reports on fish health when used correctly.
• Non-residual action reduces concern about long-term soil persistence after application.
• Works well as a glyphosate alternative for annual weed control in many settings.

Cons

• Non-selective action means care is required to avoid desirable plants during application.
• Some customers reported leaking during shipment or handling, which is a practical inconvenience.

Specifications

Product name	Alligare Diquat Herbicide - 128oz
Brand	ALLIGARE
Volume	128oz container
Mode of action	Fast-acting contact herbicide, non-selective
Use environments	Aquatic environments, landscapes, terrestrial applications
Residual	Non-residual
Primary target	Actively growing green plant tissue, pond weeds, duckweed

Our Verdict

Alligare Diquat Herbicide - 128oz is a practical choice for those who need rapid, non-residual control of surface and aquatic weeds and who value fish-safe results when used as directed. Its speed and broad activity make it good value for targeted burndown work, though users should plan applications carefully because it is non-selective and some buyers noted occasional packaging issues.

Frequently Asked Questions

Is this product safe for fish?
When used according to label directions for aquatic sites, customers report it is safe for fish and fish health concerns were minimal.

How quickly will I see results?
Visible burndown is typically seen within hours to a few days after application, depending on conditions and weed type.

Can this replace glyphosate?
Yes, it can be used as a glyphosate alternative for annual weed control, especially where a fast, contact-only action is preferred.