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Monterey Consan 20
Monterey Consan 20 is a powerful three-in-one product that functions as a fungicide, disinfectant, and deodorizer to control fungi, bacteria, and viral-type plant pathogens indoors and outdoors. It was previously named Consan Triple Action 20 by Brandt.
10/07/25
Monterey Consan 20 (previously known as Consan Triple Action 20 by Brandt), manufactured by Monterey, is a three-in-one product—a fungicide, disinfectant, and deodorizer that can be used indoors and outdoors to treat diseases like brown patch, black spot, and algae while also being an excellent cleaning product.
This highly concentrated lawn, garden, and household fungicide/algaecide product dramatically increases the rate of control over a broad spectrum of diseases when used as a fungicide and odor-causing bacteria and algae on hard, non-porous surfaces at rates as low as 1.5 fl. oz. per 5 gallons of water. Additionally, this all-in-one product controls mosquitoes where they breed.
Monterey Consan 20's highly concentrated formula allows any professional or homeowner to use this fungicide, disinfectant, and deodorizer in a wide range of situations, such as getting rid of mosquito eggs, larvae, and pupal stages in labeled water sites.
Tools Needed
You will need a hose-end sprayer, handheld pump sprayer, backpack sprayer, or spray rig. We recommend a handheld pump sprayer for general applications.
How to Use
- Step 1: Determine how much Monterey Consan 20 to use by measuring the square footage of the treatment area. To do this, measure the length and width of the treatment area in feet and then multiply them together (length X width = square footage). For general disinfection, dilute 1.5 fl. oz. of Monterey Consan 20 in 5 gallons of water. For fungicidal purposes, dilute 2 fl. oz. of this product in 5 gallons of water. For lawn treatment, use 2 tablespoons of this product per gallon of water per 50 square feet (5 ft. by 10 ft.) of lawn. Do not exceed treatment of 10 acres (2000 gallons) with retreatment at 10-day intervals, not exceeding 6 treatments per year. To control mosquitoes in small water areas, use 1 gallon of product per treatment area. Do not exceed 10 applications at a minimum of 10-day intervals per year.
- Step 2: After measuring the amount of Monterey Consan 20 you need, you can create a solution. Add half of the water you need to your spray tank. Mix in the measured amount of product, then pour the remaining half of the water into the tank. Close the sprayer tank lid and shake well until the product is thoroughly mixed.
- Step 3: When applying the mixed Monterey Consan 20, be sure the area is wet for at least 10 minutes for proper results. For even coverage, use a fan spray setting. After spraying your area, let it air dry. You can repeat the application every 10 to 14 days as needed for lawn treatment.
Where to Use
Monterey Consan 20 Fungicide can be used outdoors on ornamental plants, lawns, and trees. In the case of diseased trees, the spot treatment of trees must be at least 100 feet from any pond, lake, stream, or river to prevent possible runoff of the product into the waterway.
As a disinfectant, you can use this product indoors in non-medical facilities, on hard, non-porous surfaces such as work areas or benches. Outdoors, it may be used to clean hard, non-porous surfaces such as pots, flats, flower buckets, cutting tools, greenhouse glass, houseplant and gardening containers and equipment, walkways, bird baths, fountains, water displays, decorative pools/ponds, and standing water.
When to Use
Use as a contact fungicide during the growing season or whenever you have noticed and identified a disease on your plants. You can also use it indoors and outdoors as a disinfectant when people or animals are absent.
Treatment is required during the warm growing season and must be made when the lawn is dry or damp, but not during wet rainy weather.
Only out-of-season, not-in-service, or inactive spas, hot tubs, and swimming pools require treatment for mosquito control. Do not treat during the swimming season.
Safety Information
Monterey Consan 20 is safe to use around children and pets when applied according to product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.
Keep people and animals out of treated areas until the spray has completely dried.
This product is toxic to fish; do not apply when fish are present.
Do not graze treated areas or feed clippings to livestock.
Special Considerations
Monterey Consan 20 is not intended for broadcast mosquitocide applications but is limited to small residential ponds, decorative ponds, and similar areas. It will control mosquitoes where they breed, such as in fountains, water displays, decorative pools, decorative ponds, sewage treatment systems, spas, hot tubs, swimming pools, and standing water in old tires, empty tin cans, barrels, puddles, and water drains around buildings.
Spray from fountains treated with this product will not harm poolside plantings.
Availability | Online |
Restricted Use | No |
Shipping Restrictions | 16 Ounce: AK, CA, CO, CT, FL, ID, IL, IN, MA, MN, MO, MS, NC, NV, OK, OR, PA, SC, SD, VT, WA, WI, WY 1 Gallon: AK, CA, CO, CT, FL, ID, IL, IN, MA, MN, MO, MS, NC, NV, OK, OR, PA, SC, SD, VT, WA, WI, WY |
Brand | MONTEREY |
Keith's Pro Tips | "When applying Monterey Consan 20 on turfgrasses, start on the back of the yard and work your way toward the front. This will ensure you don't walk over what you already treated." |
Product Drawbacks | Do not apply Monterey Consan 20 to vegetables. Monterey Consan 20 cannot be used on any item for human consumption. |
Target Pests | Anthracnose, Black Spot, Brown Patch, Powdery Mildew, Crown Rot, Leaf Spots, Rust, Mold, and Algae. |
Application Equipment | Gloves, Pump Sprayer |
Application Methods | Broadcast Spray, Spot Treatment |
Active Ingredient | Alkyl (C14 60%, C16 30%, C12 5%, C18 5%) dimethyl benzyl ammonium chloride 10.0% Alkyl (C12 68%, C14 32%) dimethyl ethylbenzyl ammonium chloride 10.0% |
Product Type | Fungicide |
Formulation | Emulsifiable Concentrate (EC) |
Application Rate | Depending on what you are using this product for, the mix rate is between 0.25 and 2 ounces of product. Refer to the label for specific mix rates. |
Shelf Life | Monterey Consan 20 will last up to 3 years when stored in a cool, dry place. |
Yield | 16 oz. of Monterey Consan 20 covers 1,000 sq. ft. |
Use Sites | Indoors, Outdoors |
Time to Kill | Target plants and surfaces need to have Monterey Consan 20 remained on them for 10 minutes to be disinfected. |
Comparable Products | Consan Triple Action 20 |
Incompatible Home Siding | Brick, Hardie Plank, Stone Veneer, Stucco, Wood, Vinyl |
EPA Registration # | 10324-94-54705 |
Restricted Use | No |
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Shipping Restrictions | AK, AL, CA, CO, CT, FL, ID, IL, IN, KY, MA, MN, MO, MS, NC, NV, OK, OR, PA, SC, SD, VT, WA, WI, WY |
Availability | Online |
Signal Word | DANGER |
Keith's Pro Tip | "When applying Monterey Consan 20 on turfgrasses, start on the back of the yard and work your way toward the front. This will ensure you don't walk over what you already treated." |
Target Pests Multi | Anthracnose, Bacterial Leaf Spot, Bacterial Stem Plugging, Black Spot, Botrytis, Botrytis Petal Blight, Brown Canker, Brown Patch, Canker Rot, Carnation Rust, Crown Gall, Crown Rot, Curvularia, Damping-Off, Dollar Spot, Downy Mildew, Fairy_Ring, Fusarium, Fusarium Basal Rot , Fusarium Blight, Gray Mold, Gray Mold Leaf Spot, Gray Mold Rot, Helminthosporium, Leaf Blight, Leaf_Spot, Penicillium, Phyllosticta Blight, Powdery Mildew, Pythium Blight, Rhizoctonia, Root Rot, Rots, Rust, Southern Blight, Stem Gall, Stem Rot , Toad Stools, Top Rot , Wilt, Algae |
Time to Kill | Target plants and surfaces need to have Monterey Consan 20 remained on them for 10 minutes to be disinfected. |
Chemical Type | Fungicide |
Formulation | Emulsifiable Concentrate (EC) |
Application Methods | Broadcast Spray, Spot Treatment |
Product Drawbacks | Do not apply Monterey Consan 20 to vegetables. Monterey Consan 20 cannot be used on any item for human consumption. |
Active Ingredient | Alkyl (C14 60%, C16 30%, C12 5%, C18 5%) dimethyl benzyl ammonium chloride 10.0% Alkyl (C12 68%, C14 32%) dimethyl ethylbenzyl ammonium chloride 10.0% |
Application Equipment | Gloves, Pump Sprayer |
Mix Rate | Depending on what you are using this product for, the mix rate is between 0.25 and 2 ounces of product. Refer to the label for specific mix rates. |
Use Sites | Indoors, Outdoors |
Yield | 16 oz. of Monterey Consan 20 covers 1,000 sq. ft. |
EPA Registration No. | 10324-94-54705 |
Shelf Life | Monterey Consan 20 will last up to 3 years when stored in a cool, dry place. |
Comparable Products | Consan Triple Action 20 |
Children or pets? | Yes |
Property Characteristics | None |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.