Cutrine Plus Liquid


SKU: ACUT12 Categories: ,


Cutrine Plus Lake and Pond Algaecide is not only our favorite, but the absolute best, safest, easiest to use, and most economical algaecide! We at Herman Brothers use Cutrine Plus for most all of our algae applications. Typically we mix this product with our favorite aquatic herbicides to save money while killing invasive lake weeds more effectively!

Most tend to use copper sulfate to kill filamentous algae (moss), and it definitely kills algae! The problem with copper sulfate is that it is a very harsh formulation of copper that extensively damages your ponds entire ecosystem and is not safe for fish or people. Repeated use of copper sulfate actually causes water to go sterile and the end result of a pond that can’t keep itself clean is actually more algae. Using copper sulfate makes a pond or lake dependent upon copper sulfate, not to mention environmentally unsafe conditions for fish, plants, and people!

Cutrine Plus is a 9% chelated form of copper that is completely safe for fish, plants, and people! It does not build-up in the pond and does not damage your ponds ecosystem. It is very safe and easy to apply and kills many forms of algae, including the most common filamentous (moss) algae, planktonic (pea soup) algae, chara (muskgrass), and spirogyra.

Application Rates:
Application rates vary quite a bit depending on the amount and type of algae that needs to be treated.

Filamentous Algae (Moss)- 1 gallon treats 20,000 square feet.
Planktonic Algae- .5 to 1 gallon per acre foot of water.
Chara- 1 gallon treats 10,000 square feet (must be early in the life cycle to be effective)

Application Tips:
How to Apply Cutrine Plus?

For most algae applications mix 1 gallon of Cutrine Plus with 9 gallons of water and 8 ounces of surfactant. Spray directly on the algae, early in the morning, on a sunny day for best results. Heavy infestations of algae will typically need a follow up treatment about 5 days later.

For Planktonic algae applications, you can simply hold the spray nozzle underwater and drive around or just dilute the cutrine plus in a 5 gallon bucket and evenly slowly pour it into the water as you drive around.

*** For really bad algae infestations I will add 8 ounces of Reward per gallon of Cutrine Plus. I also will typically add 8-12 ounces of Cutrine Plus into most of my Reward applications for invasive lake weeds ***

Water Use Restrictions:
Cutrine Plus does not have any water use restrictions, it is an extremely safe product! Treated water may be used for swimming, fishing, drinking, livestock watering, or irrigation immediately following treatment. One word of caution would be not to kill too much algae at one time during the heat of the summer. Decaying vegetation will deplete the available oxygen and could kill fish.

Read and follow all local, state and federal regulations pertaining to the use and application of these products before ordering.


– California
– Connecticut
– Massachusetts
– New Hampshire
– New Jersey
– New York

– Oregon
– Rhode Island
– Washington State
– Vermont

Additional information

Weight 1.0 lbs

1 gallon, 4 gallons


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