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APPLIED BIO CHEMISTS
Cutrine Plus Granular Algaecide
Cutrine Plus Granular Herbicide is an easy-to-use herbicide that effectively controls many weeds and algae in water bodies. The granular formulation means there's no mixing or spraying required.
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Cutrine Plus Granular Algaecide product page
Min : 54.32 - Max : 96.5
Price as of
12/01/25
12/01/25
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Cutrine Plus Granular Algaecide, manufactured by Applied Bio Chemists, is a fast-acting granule algaecide capable of controlling a broad spectrum of algae species, such as Chara, Nitella, Filamentous, and Hydrilla.
Due to its double-chelated active ingredient, Copper ethanolamine complex 10.7%, and its combination of slow and rapid release granules, it will quickly sink to the bottom of labeled water sites like ponds or potable water reservoirs to attack algae and aquatic weed growth immediately.
Cutrine Plus Granular Algaecide immediately destroys algae species in 1 to 2 days upon contact and stays in the water far longer, offering more long-term control against algae and Hydrilla infestations. This product should not be confused with its liquid form, Cutrine Plus Algaecide, which is labeled more for surface algae infestations than bottom-dwelling ones like Cutrine Plus Granular Algaecide.
Tools Needed
This product is ready to use right out of the bag. The only tool you will need is a plastic scoop or spreader to distribute the granules.
How to Use
- Step 1: Determine how much Cutrine Plus Granular Algaecide you will need to treat your water body. To do this, calculate the surface area by measuring (in feet) the surface length and the width and then dividing by 43,560 to get the surface acreage. For small area spot treatments, the rate is 1.5 lbs. of Cutrine Plus Granular Algaecide per 1,000 square feet. (In areas less than 1 ft. deep, reduce dosage by 2 oz. per inch of water per 1,000 sq. ft. to not exceed 1.0 ppm copper). For larger treatments, the rate varies from 20 lbs. to 210 lbs. of product per surface acre, depending on the height of plant growth and the type of algal growth. Refer to the product label for specific rates and restrictions.
- Step 2: Using a plastic scoop or granular spreader, measure the appropriate amount of Cutrine Plus Granular Algaecide needed to evenly distribute the granular herbicide over the water's surface.
- Step 3: Spread the Cutrine Plus Granular Algaecide along the shore and proceed outwards in bands to allow fish to move into untreated areas. No more than half of the water body may be treated at one time. Multiple applications may be required to maintain season-long control of algae. Re-apply Cutrine Plus Granular Algaecide as new growth reappears, but allow 14 days to pass between each application before reapplying this product.
Where to Use
Apply Cutrine Plus Granular Algaecide in lakes, potable water reservoirs, ponds, fish hatcheries, and around docks, rafts, or water intakes.
Do not use in waters containing Koi and hybrid goldfish. It is not intended for use in small-volume garden pond systems.
When to Use
For best results, apply Cutrine Plus Granular Algaecide early on the morning of a calm, sunny day with a water temperature of 60 degrees Fahrenheit or warmer. Contact time should be at least 3 hours. Bright sunlight will improve effectiveness.
Safety Information
Cutrine Plus Granular Algaecide 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.
This product may be toxic to trout and other species of fish. Fish toxicity is dependent upon the hardness of water. Do use in water containing trout if the carbonate hardness of the water does not exceed 50 ppm.
Applications in waters destined for use as drinking water must receive additional and separate potable water treatment. Do not apply more than 1.0 ppm of metallic copper in these waters.
Special Considerations
Waters treated with Cutrine Plus Granular Algaecide may be used for swimming, fishing, drinking water treatment, livestock watering, or irrigating turf, ornamental plants, or crops following treatment.
| Restricted Use | No |
|---|---|
| Shipping Restrictions | AK, AL, AR, CA, CO, CT, DC, DE, ID, IL, IN, KY, LA, MA, MD, ME, MN, MO, MS, NC, ND, NE, NH, NM, NV, NY, PA, RI, SC, TN, TX, VT, WI |
| Availability | Online |
| Signal Word | DANGER |
| Keith's Pro Tip | "The earlier you treat the algae and aquatic weed growth, the better. Treating your algae when growth first appears will drastically reduce the amount of Cutrine Plus Granular Algaecide you need for season-long control. Early treatment will also reduce the amount of dead growth." |
| Target Pests Multi | Algae, Chara Algae, Filamentous Algae, Hydrilla, Nitella Algae |
| Time to Kill | Starts working right away within 24-48 hours and lasts up to 5 weeks |
| Chemical Type | Herbicide |
| Formulation | Granular |
| Application Methods | Granular Spreading |
| Product Drawbacks | Heavy, out of control growth may require more than one treatment or physical removal to gain control. |
| Active Ingredient | copper ethanolamine complex - 10.7% |
| Application Equipment | Hand Spreader |
| Mix Rate | You will use 30 lbs. per .5 acres (60 lbs. per surface acre) * 1 lb. per 720 square feet. For more specific application rates please refer to the label. |
| Use Sites | Outdoors |
| Yield | 30 lbs per half acre, 60 lbs per acre, or 1 lb per 720 square feet |
| EPA Registration No. | 8959-12 |
| Shelf Life | Cutrine Plus Granular Algaecide will last 1 to 3 years when stored in a cool, dry place. |
| Comparable Products | Cutrine Plus Liquid Herbicide |
| Children or pets? | Yes |
| Property Characteristics | None |
| Availability | Online |
| Restricted Use | No |
| Brand | APPLIED BIO CHEMISTS |
| Keith's Pro Tips | "The earlier you treat the algae and aquatic weed growth, the better. Treating your algae when growth first appears will drastically reduce the amount of Cutrine Plus Granular Algaecide you need for season-long control. Early treatment will also reduce the amount of dead growth." |
| Product Drawbacks | Heavy, out of control growth may require more than one treatment or physical removal to gain control. |
| Target Pests | Cutrine-Plus, under field conditions, is effective in controlling a broad range of algae including: Chara, Spirogyra, Cladophora, Vaucheria, Ulothrix, Microcystis and Oscillatoria. Cutrine-Plus has also been proven effective in controlling the rooted aquatic plant, Hydrilla verticillata. For more target pests please refer to the label. |
| Application Equipment | Hand Spreader |
| Application Methods | Granular Spreading |
| Active Ingredient | copper ethanolamine complex - 10.7% |
| Product Type | Herbicide |
| Formulation | Granular |
| Application Rate | You will use 30 lbs. per .5 acres (60 lbs. per surface acre) * 1 lb. per 720 square feet. For more specific application rates please refer to the label. |
| Shelf Life | Cutrine Plus Granular Algaecide will last 1 to 3 years when stored in a cool, dry place. |
| Yield | 30 lbs per half acre, 60 lbs per acre, or 1 lb per 720 square feet |
| Use Sites | Outdoors |
| Time to Kill | Starts working right away within 24-48 hours and lasts up to 5 weeks |
| Comparable Products | Cutrine Plus Liquid Herbicide |
| EPA Registration # | 8959-12 |
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