Cutrine Plus Granular Algaecide

A fast-acting chelated copper granular algaecide for bottom-growing algae and certain aquatic vegetation. The granules sink to the treatment zone and release copper directly where nuisance growth is occurring.

Recommended for

Algae and chara growing on the bottom of a lake or pond.

Active ingredient

3.7% elemental copper (10.7% Copper Ethanolamine Complex).

Product details & application

• Granular formulation sinks rapidly for targeted treatment.
• Chelated copper remains active longer than standard copper sulfate.
• Treat heavy algae growth in sections to reduce the risk of oxygen depletion.

Key plants / growth controlled

• Filamentous algae
• Spirogyra
• Cladophora
• Vaucheria
• Ulothrix
• Chara
• Nitella
• Starry stonewort
• Hydrilla

Application examples

• Lakeshore 100 ft × 100 ft: 6.9 lb
• Lakeshore 75 ft × 100 ft: 5.1 lb
• Lakeshore 50 ft × 50 ft: 1.8 lb
• 1.0 acre pond: 30 lb
• 0.50 acre pond: 15 lb
• 0.25 acre pond: 7.5 lb

Water use & safety

The supplied information states treated water can be used immediately for swimming, fishing, drinking, and irrigation when applied as directed. Use caution in waters containing copper-sensitive fish such as koi, hybrid goldfish, or trout, especially at low carbonate hardness.

Shipping restrictions

Cannot ship to: AK, CA, CT, HI, ID, ME, MA, NH, NJ, NY, OR, RI, VT, WA.

Important: Always refer to the current product label for exact application rates, restrictions, directions, and instructions.