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Monument 75WG Herbicide
Monument 75WG is a water-dispersible granule that provides selective post-emergent control of weeds on landscapes. Effective against broadleaf, sedges, and grassy weeds.
10/18/25
Monument 75WG Herbicide, manufactured by Syngenta, is a disperable granule designed for the post-emergent control and some pre-emergent control of 40 types of broadleaf, sedge, and grass weeds in established warm-seasoned turf sites.
This broad-spectrum herbicide comes in water-dispersible granules that must be thoroughly mixed in water and applied as a spray. Once mixed, this herbicide removes cool-seasoned grasses from established warm-seasoned turf in both shoot and root uptake.
Monument 75WG Herbicide delivers broad-spectrum control in all seasons, including extended cold temperatures. It controls all major sedges and summer annuals like crabgrass or dandelion in the spring and summer. From late summer to early fall, it works best for bermudagrass clean-up. In the winter, it controls cool-season annuals such as poa annual, clover, or henbit.
Tools Needed
You will need to use a backpack sprayer or hose sprayer.
This product requires the use of a nonionic surfactant.
How to Use
- Step 1: Avoid mowing 1 to 2 days before and after application of Monument 75WG Herbicide. Determine how much Monument 75WG Herbicide to use by measuring the square footage of the treatment site. To do this, measure the length and width of the treatment area in feet, then multiply (length X width = square footage). The spot application rate for Monument 75WG Herbicide is 0.5 grams of product per 2 gallons of water with 20 ml (2/3 oz.) of nonionic surfactant per 1,000 sq. ft. There is a maximum yearly application rate of 1.7 oz. of product per acre.
- Step 2: Fill the spray tank halfway with clean water. Place an appropriate amount of Monument 75WG Herbicide in the tank, then pour in a measured amount of surfactant. Fill the spray tank the rest of the way with the remaining half of the water and shake well to create even agitation.
- Step 3: Apply your mixed solution to the top and bottom of weed leaves on a fan-spray setting for best results. Avoid all contact with ornamental plants and other desired foliage. Once 3 hours have passed after application, water with light irrigation to remove the product from turf foliage before resuming normal irrigation practices. You may need to reapply 4-6 weeks after your initial treatment for optimum weed control.
Where to Use
Use Monument 75WG Herbicide on bermudagrass, zoysiagrass, and buffalograss on golf courses, sod farms, sports fields, residential properties (except California), including home lawns, and other non-residential turf areas such as airports, cemeteries, commercial buildings, and similar sites.
This product may be applied to St. Augustine turf when grown for the production of sod only.
Some ornamental plants are very sensitive to this product. Avoid applications to areas where the product may accumulate under the drip line of trees, where the product may come into contact with the roots of desirable plants, or where injury may occur.
When to Use
Use when you notice weed growth on your turf or landscape. Apply on calm days when wind speeds are below 10 mph to prevent drift and when rain is not in the immediate forecast. Spraying works best when the soil is moist, and weeds are actively growing.
Avoid applications when turfgrasses are under stress since injury may result.
Safety Information
Monument 75WG Herbicide 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 handling or applying this product.
Do not enter or allow children, pets, and other individuals to enter the treated areas until the sprays have dried.
Special Considerations
Do not use Monument 75WG Herbicide on turfgrasses other than what is mentioned on the product label or severe injury may result.
Monument 75WG Herbicide may cause temporary discoloration of St. Augustine and reduced growth rate.
This product can be tank-mixed with Barricade 65WG for pre- and post-emergent control of weeds in turf. To control Poa annua in non-overseeded bermudagrass, apply Monument 75WG plus Barricade 65WG in the fall after the Poa annua has germinated but before growth has slowed.
Availability | Online |
Restricted Use | No |
Shipping Restrictions * = not registered** = restricted use | 33 Gram Tube: AK*, CT*, IA*, ID*, MA*, ME*, MI*, MN*, MT*, ND*, NH*, NY*, OR*, RI*, SD*, VT*, WA*, WI*, WY* 5 Gram: AK*, CT*, IA*, ID*, MA*, ME*, MI*, MN*, MT*, ND*, NH*, NY*, OR*, RI*, SD*, VT*, WA*, WI*, WY* |
Brand | SYNGENTA |
Keith's Pro Tips | "Monument 75WG does an especially great job controlling sedges like yellow nutsedge, purple nutsedge, and kyllinga. Also, they come in pre-measured packets, so you could easily mix and get right to spraying." |
Product Drawbacks | Monument 75WG controls sedges, certain grasses, and broadleaf weeds in bermudagrass and zoysiagrass. It is not labeled for use on other grass types. |
Target Pests | Annual Sedge, Bahiagrass, Black Medic, Broadleaf Signalgrass, Car's ear dandelion, Carolina Geranium, Carpetweed, Clover, Cock's-comb Kyllinga, Common Chickweed, Corn speedwell, Crabgrass, Creeping Indigo, Dallisgrass, Dandelion, Dichondra, Field Pansy, Globe Sedge, Green Kyllinga, Ground Ivy, Hairy Buttercup, Henbit, Hop Clover, Khakiweed, Lawn Burweed, Lawn Pennywort, Little Barley, Mouseear Chickweed, Oxalis, Parsley Piert, Poa Annua, Purple Nutsedge, Rabbitsfoot Clover, Rescuegrass, Ryegrass, Shepard's-purse, Spotted Spurge, Tall Fescue, Torpedograss, Virgina Buttonweed, Wild Garlic, and Yellow Nutsedge. |
Application Equipment | Gloves |
Application Methods | Spot Treatment |
Active Ingredient | Trifloxysulfuron-Sodium 75.0% |
Product Type | Herbicide |
Formulation | Water Dispersible Granule (WDG) |
Application Rate | Use 1 (0.5 gram) packet of Monument 75WG Herbicide per 2 gallons water with 20 ml (2/3 oz.) of non-ionic surfactant per 1,000 sq. ft. |
Shelf Life | Monument 75WG Herbicide can last 3 years in storage when kept in a cool, dry place away from water, food, and feed. |
Yield | If Monument 75WG is used at the high rate for spot treatment each container will treat an estimated 16,500 square feet. |
Use Sites | Outdoors |
Time to Kill | Monument 75WG Herbicide begins killing weeds within minutes after application but can take up to 1 to 3 weeks for complete plant death. |
Comparable Products | Solitare Herbicide |
Use Caution With | Bentgrass, Kentucky Bluegrass, Fescue, Fine, Fescue, Tall, Kikuyugrass, Ryegrass, St Augustine |
EPA Registration # | 100-1134 |
Restricted Use | No |
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Shipping Restrictions | AK, CT, IA, ID, MA, ME, MI, MN, MT, ND, NH, NY, OR, RI, SD, VT, WA, WI, WY |
Availability | Online |
Signal Word | CAUTION |
Keith's Pro Tip | "Monument 75WG does an especially great job controlling sedges like yellow nutsedge, purple nutsedge, and kyllinga. Also, they come in pre-measured packets, so you could easily mix and get right to spraying." |
Target Pests Multi | Annual Sedge, Bahiagrass, Black Medic, Broadleaf Signalgrass, Carolina Geranium, Carpetweed, Catsear Dandelion, Chickweed, Clover, Cock's-comb Kyllinga, Corn Speedwell, Crabgrass, Creeping Indigo, Dallisgrass, Dandelion, Dichondra, Field_Pansy, Globe Sedge, Green Kylinga, Hairy Buttercup, Henbit, Hop Clover, Khakiweed, Lawn Burweed, Lawn Pennywort, Little Barley, Mouseear Chickweed, Oxalis, Parsley Piert, Poa Annua, Purple Nutsedge, Rabbitfoot Clover, Rescuegrass, Ryegrass, Shepherdspurse, Spotted Spurge, Tall Fescue, Torpedograss, Virginia Buttonweed, Wild Garlic, Yellow_Nutsedge, Ground Ivy |
Time to Kill | Monument 75WG Herbicide begins killing weeds within minutes after application but can take up to 1 to 3 weeks for complete plant death. |
Chemical Type | Herbicide |
Formulation | Water Dispersible Granule (WDG) |
Application Methods | Spot Treatment |
Product Drawbacks | Monument 75WG controls sedges, certain grasses, and broadleaf weeds in bermudagrass and zoysiagrass. It is not labeled for use on other grass types. |
Active Ingredient | Trifloxysulfuron-Sodium 75.0% |
Application Equipment | Gloves |
Mix Rate | Use 1 (0.5 gram) packet of Monument 75WG Herbicide per 2 gallons water with 20 ml (2/3 oz.) of non-ionic surfactant per 1,000 sq. ft. |
Use Sites | Outdoors |
Yield | If Monument 75WG is used at the high rate for spot treatment each container will treat an estimated 16,500 square feet. |
EPA Registration No. | 100-1134 |
Shelf Life | Monument 75WG Herbicide can last 3 years in storage when kept in a cool, dry place away from water, food, and feed. |
Comparable Products | Solitare Herbicide |
Children or pets? | No |
Property Characteristics | None |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.