Weedtrine D Aquatic Herbicide 1 Gallon

Name: Weedtrine D Aquatic Herbicide 1 Gallon
Brand: SePRO
SKU: NTBIO3744598
Price: 90.38 USD
Availability: InStock

Weedtrine D Aquatic Herbicide 1 Gallon

$9038

All-in price Shipping and all taxes included.

Weedtrine D Aquatic Herbicide is a fast liquid pond treatment for control of submersed, floating, and marginal weeds, including duckweed. It is especially useful in small and residential ponds where you want quick response, flexible application, and a practical way to handle mixed weed pressure.

Broad target fit; controls multiple aquatic weed types.
Duckweed capable; useful when surface mats are part of the problem.
Fast visible response; effects can appear within a few days.
Small-pond friendly; built for residential pond treatment planning.
Flexible use pattern; rates and dilution change by target.
Clear planning cues; surfactant needs and water-use intervals stay visible.

Choose it when you want fast, broad pond weed control in a liquid format that stays practical for smaller sites.

Always follow label directions.

Weight: 11 Lbs. (Length: 9" x Width: 4" x Height: 12")

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Product Description

Fast, flexible weed control for smaller ponds

Weedtrine D gives small-pond owners and lake managers a fast-response liquid option when weed pressure is mixed and timing matters. It is built for broad control of submersed, floating, and marginal weeds, and it is especially useful when duckweed or shoreline growth needs a practical spray-based program. Species-based rates let the same product adapt to very different weed situations without forcing one blanket approach.

Key Features & Benefits

Feature	Benefit
Diquat liquid concentrate	Gives you a fast contact-treatment format for broad aquatic weed pressure.
Submersed, floating, and marginal fit	Helps simplify product choice when more than one weed zone is in play.
Duckweed target fit	Makes it a practical option when floating surface cover is part of the cleanup plan.
Species-based rates	Lets you match the treatment to the target instead of overgeneralizing the job.
Small-pond positioning	Strong fit for residential ponds where broad control and quick response matter.

Directions & Dosing Snapshot

Use Case	Label Rate	Application Notes
Submersed weeds	5 to 10 gal/surface acre	Use species-based rates; early season 5:1 dilution, late-season surfaced growth 2:1.
Floating weeds	2.5 to 3.75 gal/surface acre	Dilute 64:1 with water and add aquatic non-ionic surfactant.
Duckweed	5 gal/surface acre	Dilute 25:1 with water; add aquatic non-ionic surfactant; re-treatment may be needed.
Marginal weeds / cattails	5 gal/surface acre for cattails	Dilute 19:1 for top kill, add surfactant, and wet foliage thoroughly.
Certain filamentous algae	0.5 to 1.5 ppm	Use gallons = ppm × acreage × average depth × 7.

Always follow the full label for complete directions, restrictions, and site-specific requirements.

Comparison Table

	Weedtrine D	More Concentrated Liquid Option	Selective Granular Option	Whole-Pond Systemic Option
Approach	Fast liquid contact control	Liquid contact control	Selective granular systemic control	Whole-pond systemic control
Site fit	Smaller ponds	Larger ponds or lakes	Selective management plans	Minimal-flow waterbodies
Delivery	Dilute and spray / strip treat	Liquid application	Sinking granules	Water-dispersed liquid
Decision cue	Mixed weed pressure, quick response	When pond size stretches liquid volume	When preserving desirable plants matters	When whole-pond planning fits
Restriction planning	Water-use intervals by rate	Varies by label	Varies by label	Varies by label

Why Choose a Fast Liquid Aquatic Herbicide?

Quick response: Helpful when you want visible weed knockdown in days, not a slower season-long curve.
Mixed-problem flexibility: Useful when duckweed, submersed weeds, and shoreline growth overlap in the same pond.
Smarter scale match: Strong option for smaller ponds, while larger or highly selective programs may call for a different tool.

What is Weedtrine D best used for?

Weedtrine D is best used when you need fast liquid control of mixed aquatic weed pressure in a smaller pond. It is a practical fit for submersed, floating, and marginal weeds, including duckweed, when you want broad coverage and a spray-based program instead of a slower whole-pond systemic approach.

Is Weedtrine D a good fit for a small pond?

Yes. Weedtrine D is positioned especially well for small and residential ponds where flexibility and quick response matter. It gives you species-based rates, broad weed-type fit, and a liquid format that is easier to plan around than larger whole-lake programs.

What kinds of weeds can Weedtrine D control?

Weedtrine D is designed for submersed, floating, and marginal aquatic weeds, and duckweed is one of its headline fits. That makes it useful when a pond has more than one weed zone in play rather than just a single narrow problem.

Do I need a surfactant with Weedtrine D?

You do for weeds on or above the water surface. Floating weeds, duckweed, and marginal foliage applications call for an aquatic non-ionic surfactant so the spray can spread and stay in contact more effectively. That is one of the most important planning details to get right before you mix the spray.

Why can duckweed or weed pressure come back, and where do beneficial microbes fit?

Weedtrine D can knock back active weed growth quickly, but killing visible growth is not the same as removing the organic fuel that keeps feeding the cycle. As dead weeds settle and break down, they can add to the nutrient and sludge load that supports repeat growth. Beneficial microbes are the long-term complement because they help digest that accumulated organic matter, making them a smart follow-up strategy after fast chemical knockdown.

How do the rates work without guessing?

The rate depends on what you are treating. Submersed weeds run 5 to 10 gallons per surface acre, floating weeds 2.5 to 3.75, duckweed 5, and cattails 5. Certain filamentous algae use a ppm calculation instead of a surface-acre weed rate. The easiest way to stay accurate is to identify the target first, then match the use case and dilution method instead of trying to force one shortcut number onto every pond.

How fast will I see results?

Herbicidal effects are typically visible within a few days. That fast response is one reason Weedtrine D is attractive for smaller ponds where you want to see progress quickly and adjust the program if needed.

Can I treat the whole pond at once?

Not when growth is dense. Large die-off can reduce oxygen in the water, so dense infestations should be treated in sections rather than all at once. That staged approach protects the pond better and gives you a more controlled cleanup process.

What water-use restrictions should I plan around?

Restriction timing depends on the application rate, so this is the main operational detail to review before treatment. The label gives 0-day intervals for swimming and fishing at the listed rates, while drinking water, livestock watering, and irrigation have waiting periods that vary by rate. If the pond feeds irrigation or water access for animals, plan that timing before you spray.

Can Weedtrine D help with algae too?

Yes, but the fit is narrower than the weed-control side of the product. Weedtrine D is labeled for certain filamentous algae, with rates based on ppm, acreage, and average water depth. If algae is paired with submersed weeds, treatment planning may need to account for both problems together instead of treating algae as an afterthought.

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Product Details

SKU: NTBIO3744598

UPC: 038005820101

Category: Herbicides

Brand: SePRO

Weight: 11 lbs

Dimensions: 9 x 4 x 12 in

Important Information

SDS: View Safety Data Sheet (PDF)

LABEL (Directions & Rates): View Product Label (PDF)

Comments/Other: Review the Product Label and SDS for directions, rates, and safety information.

Certifications / Registrations: EPA registered

Origin: Made in the USA

Feature: Ideal for spot treatments and shoreline management

Product Form: Liquid