Cutrine Plus Granular Algaecide 4-Pack of 30 lb Bags, 120 lb Total
Cutrine Plus Granular Algaecide 4-Pack of 30 lb Bags, 120 lb Total
$44992
Restore crystal-clear water with Applied Biochemists Cutrine Plus Granular Algaecide, a rapid-sinking
granular treatment powered by 3.7 % chelated copper ethanolamine complexes. This professional-grade solution
delivers up to 5.5 weeks protection and leaves water safe for people, pets, and turf.
- Visible results in 1–2 days; copper complexes rupture algae cells on contact
- Targeted bottom control; clay granules blanket the substrate 2–3 ft deep for precision kill
- Long-lasting action; stays active an average 5.5 weeks, cutting retreatments
- Broad-spectrum efficacy; conquers Chara, Nitella, filamentous and planktonic blooms
- Zero water-use restrictions; safe to swim, fish, or irrigate immediately*
- EPA-approved & trusted; relied on by lake managers, golf courses, and hatcheries
Order today and restore pristine water without compromise.
*EPA-registered pesticide. Always follow label directions.
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Product Description
Precision Algae Control for Ponds & Lakes
Cutrine Plus Granular delivers a powerful 3.7 % chelated copper payload in clay granules that sink instantly, releasing copper right where bottom-growing algae thrive. The result: visible reduction in as little as 48 hours and season-long clarity with far fewer retreatments. Its hard-water-stable formula outperforms traditional copper sulfate while remaining non-corrosive to equipment and safe for wildlife.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Rapid-sinking clay granule | Delivers copper directly to algae beds for fast, targeted kill |
| Chelated copper complex | Remains in solution longer than copper sulfate for extended control |
| 1.5 lb/1 000 sq ft dose | Treats up to ½ acre per 30 lb bag; easy broadcast with hand or rotary spreader |
| No water restrictions | Immediate use for swimming, fishing, and irrigation after treatment |
| EPA-registered, professional grade | Trusted by municipalities, hatcheries, and course superintendents |
Comparison Table
| Cutrine Plus Granular | Generic Copper Sulfate | Barley Straw Bales | Diquat Herbicide | |
|---|---|---|---|---|
| Active ingredient | Chelated copper 3.7 % | Copper sulfate 99 % | N/A (natural) | Diquat dibromide 37.3 % |
| Time to results | 1–2 days | 3–7 days | 4–6 weeks | 3–5 days |
| Water use restrictions | None | Up to 24 hrs | None | Up to 5 days |
| Equipment corrosion risk | Low | High | None | Moderate |
| Bottom-growing algae efficacy | Excellent | Good | Poor | Fair |
Why Choose Rapid-Sinking Chelated Copper?
- Maximum contact time: granules stay put even in light flow, ensuring full exposure.
- Season-long economy: fewer retreatments mean lower labor and product costs.
- Regulatory peace-of-mind: meets potable-water standards and stays within copper limits.
This product is distributed by NewTechBio as an authorized reseller. Specifications, treatment rates, and performance claims are sourced from the official manufacturer label and published documentation. NewTechBio does not independently verify manufacturer claims. Always read and follow the label.
Last updated for listing accuracy: 05/17/2026
How quickly will I see results?
Is the treated water safe for swimming and irrigation?
Which algae species does it control?
How much area does a 30 lb bag cover?
Will it harm fish such as bass or bluegill?
How often should I retreat?
What is the difference between Cutrine Plus Granular and Cutrine Plus Liquid for pond algae control?
Why should I only treat part of my pond or lake at one time?
When is the best time to apply Cutrine Plus Granular for string algae, Chara, or Nitella?
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Product Details
SKU: NTB128190-4
UPC: 811744011326
Category: Algaecides
Brand: SePRO
Weight: 30 lbs
Dimensions: 18 x 25 x 30 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: N/A
Feature: No irrigation or swimming restriction when used according to the EPA label
Product Form: Granules
Product Details
Precision Algae Control for Ponds & Lakes
Cutrine Plus Granular delivers a powerful 3.7 % chelated copper payload in clay granules that sink instantly, releasing copper right where bottom-growing algae thrive. The result: visible reduction in as little as 48 hours and season-long clarity with far fewer retreatments. Its hard-water-stable formula outperforms traditional copper sulfate while remaining non-corrosive to equipment and safe for wildlife.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Rapid-sinking clay granule | Delivers copper directly to algae beds for fast, targeted kill |
| Chelated copper complex | Remains in solution longer than copper sulfate for extended control |
| 1.5 lb/1 000 sq ft dose | Treats up to ½ acre per 30 lb bag; easy broadcast with hand or rotary spreader |
| No water restrictions | Immediate use for swimming, fishing, and irrigation after treatment |
| EPA-registered, professional grade | Trusted by municipalities, hatcheries, and course superintendents |
Comparison Table
| Cutrine Plus Granular | Generic Copper Sulfate | Barley Straw Bales | Diquat Herbicide | |
|---|---|---|---|---|
| Active ingredient | Chelated copper 3.7 % | Copper sulfate 99 % | N/A (natural) | Diquat dibromide 37.3 % |
| Time to results | 1–2 days | 3–7 days | 4–6 weeks | 3–5 days |
| Water use restrictions | None | Up to 24 hrs | None | Up to 5 days |
| Equipment corrosion risk | Low | High | None | Moderate |
| Bottom-growing algae efficacy | Excellent | Good | Poor | Fair |
Why Choose Rapid-Sinking Chelated Copper?
- Maximum contact time: granules stay put even in light flow, ensuring full exposure.
- Season-long economy: fewer retreatments mean lower labor and product costs.
- Regulatory peace-of-mind: meets potable-water standards and stays within copper limits.
SKU: NTB128190-4
UPC: 811744011326
Category: Algaecides
Brand: SePRO
Weight: 30 lbs
Dimensions: 18 x 25 x 30 in
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: N/A
Feature: No irrigation or swimming restriction when used according to the EPA label
Product Form: Granules
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Reviews
Verified Purchase
This treatment tackles pond weeds effectively and delivers the results I hoped for.
Verified Purchase
Applied it along our lakefront beach and in just two days the green algae browned and nearly vanished. I’ll definitely buy again next season.
Verified Purchase
The algae bloom cleared within just a few days and the pond is now crystal clear.
Verified Purchase
Works great. I add it with Mako blue dye to help reduce the Cutrine budget. A quarter-acre pond needs roughly 30 lb over the season.
Verified Purchase
Applied early in the season and it provided outstanding control for our problem pond. Works extremely well.
Verified Purchase
Works well on bottom algae; you’ll need roughly 60-120 lb per acre. Does not affect lilies or cattails.
Verified Purchase
I manage an association with 7 lakes that are overrun with algae by late season. Although Cutrine has consistently controlled the growth, since we began incorporating a microbial digester treatment, our reliance on the Cutrine has reduced considerably.
Verified Purchase
Easy to apply and after a month it’s delivering solid results; looking forward to seeing how it holds up long term.
Verified Purchase
Keeps the algae under control which is why I ordered it again; it works really well.
Verified Purchase
I tried several treatments and this one controls growth best because the granules sink to the pond bottom where algae starts. The spray type only clears surface blooms so they keep coming back.
Verified Purchase
It worked so well the first season that I bought it again the next year. For our small pond, I walk the edge in late May, toss a light cupful onto the algae, and it clears up. A quick boost in late July keeps the pond clean for the rest of summer.
Verified Purchase
Spreads easily and keeps both algae and pond weeds in check. Exactly what I needed.
Verified Purchase
I use this to clear floating mats on the surface and chara below. Last season it required a few treatments and some raking to wipe the algae out. This year one application handled the lighter bloom with ease. Highly recommended.
Verified Purchase
Concentrated formula mixes quickly in a sprayer; after a few days the pond algae is gone and the product performs exactly as advertised.
Verified Purchase
Spread it evenly and within about a week the pond plants were noticeably reduced.
Verified Purchase
Good results but costs add up and you’ll need to reapply each season unless you dredge or use a microbial digester which aren't cheap either
