Skip to Main Content

Please enable your microphone.


We Are Listening...

Say something like...

"Show me 4health dog food..."

You will be taken automatically
to your search results.


Your speech was not recognized

Click the microphone in the search bar to try again, or start typing your search term.


We are searching now

Your search results
will display momentarily...


Applied Biochemists Cutrine Plus

SKU # 420745099
Product price

Save Up To
See price at checkout Why?
Product Rating is 5.0

Financing Available! Click here for more details...

Shipping Information



Pickup In Store

Delivery Options

Item Information

Applied Biochemists Cutrine Plus algaecide and herbicide effectively controls a broad range of algae, specifically surface filamentous and planktonic algae including cyanobacteria, green algae, golden algae and diatoms, filamentous green algae and chara and nitella as well as the rooted aquatic plant hydrilla verticillata.

  • 1 gal.
  • At maximum dosage 1ppm (1 gal.) will treat 100,000 gal.

Specification Description
Product Type: Algaecide
Brand: Applied Biochemists
Capacity: 1 gal.
Natural or Organic: No
Number of Gallons Treated: 100,000 gal.
Package Height: 18-7/8 in.
Package Length: 13-5/8 in.
Package Quantity: 4
Package Weight: 46 lb.
Package Width: 10-1/8 in.
Product Height: 12-1/4 in.
Product Length: 6-1/4 in.
Product Material: Chelated Copper
Product Size: 1 gal.
Product Width: 4-1/4 in.
Type: Algaecide
Warranty: No
Manufacturer Part Number 390104A
Applied Biochemists Cutrine Plus is rated 5.0 out of 5 by 3.
Rated 5 out of 5 by from excellent algaecide! I had red algae that took over my quarry where we swim and fish, in 1994. It looked like somebody dumped chemicals in the spring water. I bought Cutrine Plus when it was sold as liquid, diluted it in a small garbage can, then took a gallon juicer and dispersed around the one side of the quarry. The water was so clear 2 days later that everybody couldn't get over how effective it was. The day I took it and dispensed it, a gallon of dilute Cutrine Plus on the heavy red algae had an immediate effect on the algae. As I poured over the algae, it died immediately in front of our eyes. Every year since, and we don't have the red algae anymore, I have people buying Cutrine Plus on their own for here. I just had a man come up today with a new bunch, but granules. Everybody loves it, and it's safe to drink.
Date published: 2015-07-15
Rated 5 out of 5 by from I have used this product over the last two years and it's great. It has controlled my algae issues very nicely-- Just As Advertised!! I use it on a 1.5 acre pond, full of catfish and bream, and horses water from pond. All in all very pleased.
Date published: 2014-08-06
Rated 5 out of 5 by from Controlling Algae In Your Pond Ponds with shallow areas less than 2-3 feet deep are more susceptible to algae and weed growth, particularly filamentous algae in early Spring. Cutrine Plus is quite effective for controlling this if properly applied. The key is temperature. As soon as the water temperature is north of 55 degrees apply diluted Cutrine Plus according to directions with a sprayer. If necessary, use your boat or put on a pair of waders in order to reach affected areas. Filamentous algae begins to appear as a dark, sub-surface shadow. You don't have to wait until it covers the surface to begin application. Plan on repeating once or twice before Summer arrives. Safe for pond creatures and livestock too.
Date published: 2010-02-17
  • y_2018, m_10, d_20, h_14
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_420745099, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_tractorsupply
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 6ms

will it kill duck weed?

Asked by: Patches750
This product will not kill duckweed. Do not treat more than half of the surface area of the pond at once. The manufacturer advises to wait 2 weeks to treat other areas. If you have fish present in the pond, Cutrine Plus is toxic to Koi, Goldfish, Carp and Trout.
Answered by: NRoberts
Date published: 2018-03-13

How much would I need for a 1.2 acre pond tha is 9-10 ft. max depth?

Asked by: dthomaso
1.2 acres x average depth 5ft= 6 acre-foot of water. Maximum dose of 3 gallons per acre-foot= 18 gallons Max. However, we would never recommend a maximum dose. It all depends on the algae. With no other details, start at a half rate and treat only 1/3 of the pond, wait 7-10 days and treat the next section.
Answered by: DanielB
Date published: 2017-06-25

Will it harm natural deposited creek fish, spot, minnows, brem in a farm pond, approx. 75000 gal.

Asked by: Pond mudder
Waters treated with this product may be hazardous to aquatic organisms. Treatment of aquatic weeds and algae can result in oxygen loss from decomposition of dead algae and weeds. This oxygen loss can cause fish and invertebrate suffocation. To minimize hazard, do not treat more than ½ of the water body to avoid depletion of oxygen due to decaying vegetation. Wait at least 10 to 14 days between treatments. Begin treatment along the shore and proceed outwards in bands to allow fish to move into untreated areas. In regions where ponds freeze in winter, treatment should be done 6 to 8 weeks before expected freeze time to prevent masses of decaying algae under an ice cover. Consult with the State or local agency with primary responsibility for regulating pesticides before applying to public waters, to determine if a permit is required. This pesticide is toxic to some fish and aquatic invertebrates and may contaminate water through runoff. This product has a potential for runoff for several months or more after application. Poorly draining soils and soils with shallow water tables are more prone to produce runoff that contains this product. Do not contaminate water when disposing of equipment wash-waters or rinsate. Certain water conditions including low pH (≤6.5) low dissolved organic carbon (DOC) levels (3.0 mg/L or lower), and “soft” waters (i.e., alkalinity less than 50 mg/L), increases the potential acute toxicity to non-target aquatic organism. Potable water sources treated with copper products may be used as drinking water only after proper additional potable water treatments. Trout and other species of fish may be killed at application rates recommended on the label, especially in soft or acidic waters as described above. Do not contaminate water when disposing of equipment washwaters or rinsate.
Answered by: NRoberts
Date published: 2018-09-05

Can this be used in my wateres I use for my chickens ?? Is it safe for my chickens to drink ?? 

Asked by: Sparky61
When used according to label directions there are NO RESTRICTIONS FOR DOMESTIC ANIMAL DRINKING for these chemicals.
Answered by: DanielB
Date published: 2017-04-30

Is this safe to use in a Koi pond without causing harm to the fish and other aquatic life?

Asked by: RKoi
No. This is not safe to use on a Koi pond. Yes it will harm other aquatic life.
Answered by: WillR
Date published: 2018-08-15

Do you dilute this 1/2 cutrine 1/2 water etc?

Asked by: sasser
Typical dilution range is 9:1 when using backpack-type sprayer or up to 50:1 when using water pump equipment or large tank sprayers.
Answered by: DanielB
Date published: 2017-07-14

can you use this to kill lilly pads?

Asked by: pb2719
No this will not work on lilly pads.
Answered by: Alicia M
Date published: 2018-07-11
  • y_2018, m_10, d_20, h_14CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_7
  • loc_en_US, sid_420745099, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING)]
  • clientName_tractorsupply
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 4ms