Trimec Classic Broadleaf Herbicide
PBI GORDON
Trimec Classic Broadleaf Herbicide
Trimec Classic is a post-emergent, selective 3-way herbicide used for control of over 90 broadleaf weeds, including clover, dandelion, and chickweed. It has a flexible label, low odor, and can be used on warm and cool-season grasses.
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Trimec Classic Broadleaf Herbicide product page
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Trimec Classic Broadleaf Herbicide by PBI Gordon is a proven and potent 3-way herbicide used for selectively controlling emerged broadleaf weeds in warm and cool-season grasses.
With 3 active ingredients, Trimec Classic offers increased and effective control of over 90 hard-to-kill broadleaf weeds, including dandelion, knotweed, plantain, and henbit.
Trimec Classic features a broad label and is ideal for use on multiple different grass types in various locations. With a low odor and synergistic action, Trimec Classic helps keep costs low while making application simple.
Tools Needed
To use Trimec Classic, you will need a hand-held sprayer or backpack sprayer for smaller applications. For acreage applications, you will need a pesticide spray rig.
How to Use
- Step 1: Determine how much product you will need by measuring the square footage or acreage of your treatment area. Do this by measuring the area's length and width in feet and then multiplying them together. For acreage, take your square footage and divide by 43,560.
- Step 2: For cool-season grasses, apply 2 to 4 pints of Trimec Classic in 20 to 260 gallons of water per acre, or apply 1.2 to 1.5 fluid ounces in 0.5 to 6 gallons of water per 1,000 square feet. For Bentgrass, Centipedegrass, and St. Augustine grass, apply 1 fluid ounce of product with 5 gallons of water per 1,500 square feet.
- Step 3: Apply your solution evenly over the treatment area. Spray to the point of wet, not runoff. When making spring applications for clover control, it is recommended to use higher rates.
Where to Use
Trimec Classic can be used to control broadleaf weeds on ornamental and established turf in institutional, commercial, and residential sites. This includes but not limited to hospitals, nursing homes, schools, museums, libraries, sport facilities, golf courses, office buildings, homes, apartment complexes, condominiums, parks, streets, retail outlets, and cemeteries.
When to Use
Trimec Classic is best used during spring or early fall when weeds are actively growing and not yet established. Apply on calm days when wind speeds are low to minimize drift. Avoid application when air temperatures exceed 90 degrees F, and during long dry periods unless adequate irrigation is available.
Safety Information
Trimec Classic is safe to use when applied following label directions. Be sure to wear the proper personal protective equipment (PPE) and keep all people and pets off treated areas until dry.
Special Considerations
Though Trimec Classic is labelled for use in warm-season grasses like St. Augustine grass, injury may occur to the turf after application. Be sure to follow the label directions when making applications to warm-season grasses. Slight yellowing of turf will disappear after about 1 week. Do not apply Trimec Classic to St. Augustine grass during the spring green-up period to avoid further injury.
| Availability | Online |
| Restricted Use | No |
| Shipping Restrictions | 2.5 Gallon: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA 1 Gallon: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA |
| Brand | PBI GORDON |
| Keith's Pro Tips | "Do your best to avoid applying Trimec Classic when air temperatures are over 90 degrees F as some injury to turf grass may be seen." |
| Product Drawbacks | Trimec Classic may damage centipedegrass and St. Augustine grass. St. Augustine grass is especially vulnerable during spring green-up. |
| Target Pests | Trimec Class is labelled to control annual fleabane, aster (white heath and white prairie), bedstraw, beggarticks, beggarweed (creeping), bindweed, birdsfoot trefoil, black medic, broadleaf plantain, buckhorn plantain, bull thistle, burclover, burdock (common), buttercup (creeping), Carolina geranium, carpetweed, chickweed (common), chicory, cinquefoil, clover, cocklebur, compassplant, curly dock, dandelion, dayflower, deadnettle, dock, dogfennel, dovefoot geranium, English daisy, false dandelion (spotted catsear, common catsear), field bindweed (morningglory, creeping jenny), field madder, field oxeye-daisy (creeping oxeye), field pennycress, filaree (whitestem and redstem), Florida pursley, ground ivy, groundsel, hairy bittercress, hawkweed, healall, henbit, horsenettle, horseweed, innocence (blue-eyed Mary), jimsonweed, lambsquarters, lawn burweed, lespedeza (common), mallow (common), matchweed, mouseear chickweed, mustard, nettle, old world diamond flower, Oxalis (yellow woodsorrel), parsley-piert, Pennsylvania smartweed, pennywort (dollarweed), pepperweed, pineappleweed, plantain, poison ivy, poison oak, prostrate knotweed, puncturevine, purple cudweed, purslane, ragweed, redweed, red sorrel (sheep sorrel), roundleaf greenbriar, shperhard's purse, spotted spurge, spurge, sunflower, thistle, velvetleaf (buttonweed), Venice mallow, Veronica (corn speedwell), Virginia buttonweed, western salsify, white clover, wild carroy, wild garlic, wild geranium, wild lettuce, wild mustard, wild onion, wild strawberry, yarrow, yellow rocket. |
| Application Equipment | Backpack Sprayer, Gloves, Hose End Sprayer, Pump Sprayer, Respirator Mask, Spray Rig |
| Application Methods | Broadcast Spray, Spot Treatment |
| Active Ingredient | Dimethylamine salt of 2,4-dichlorophenoxyacetic acid - 25.93% Dimethylamine salt of (+)-(R)-2-(2 methyl-4-chlorophenoxy) propionic acid - 6.93% Dimethylamine salt of dicamba: 3,6-dichloro-o-anisic acid - 2.76% |
| Product Type | Herbicide |
| Formulation | Emulsifiable Concentrate (EC) |
| Application Rate | Cool-season turf, use 1.2 oz. of product per 0.5 gallons of water per 1,000 sq. ft. Acre rates cool-season turf, use 3.25 pints of product per 20 gallons of water per acre. For Bentgrass, Centipedegrass, and St. Augustine grass, apply 1 fluid ounce of product with 5 gallons of water per 1,500 square feet. |
| Shelf Life | Trimec Classic will last up to 3 years when stored properly in a cool, dry space. |
| Yield | One gallon of Trimec Classic can treat up to 520 acres. |
| Use Sites | Outdoors |
| Time to Kill | Results may be seen within several days after application with total weed die off being seen within 2 to 4 weeks. |
| Comparable Products | 3-D Herbicide, Triplet Herbicide |
| Incompatible Grass Types | Bentgrass, St Augustine, Zoysiagrass |
| Incompatible Home Siding | Brick, Hardie Plank, Stone Veneer, Wood, Vinyl |
| EPA Registration # | 2217-543 |
10/20/22
Amanda C.
Verified Buyer
Good Broadleaf Herbicide!
I have been using this stuff on my lawn and in several days its gotten rid of so many weedss! My neighbors cant believee how i nice my lawn looks!
7/21/22
LEROY E. HANSEN
Verified Buyer
creeping charlie
This product is not effective for killing creeping charlie
| Restricted Use | No |
|---|---|
| Shipping Restrictions | AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA |
| Availability | Online |
| Signal Word | DANGER |
| Keith's Pro Tip | "Do your best to avoid applying Trimec Classic when air temperatures are over 90 degrees F as some injury to turf grass may be seen." |
| Target Pests Multi | Annual Fleabane, Aster, Bedstraw, Beggarticks, Bindweed, Birdsfoot Trefoil, Black Medic, Brambles, Broadleaf Plantain, Buckhorn Plantain, Bull Thistle, Buttonweed, Carolina Geranium, Carpetweed, Catsear, Chickweed, Cinquefoil, Clover, Cocklebur, Common Burdock, Common Chickweed, Common Lespedeza, Common Mallow, Compassplant, Corn Speedwell, Creeping Beggarweed, Creeping Buttercup, Creeping Jenny, Creeping Woodsorrel, Curly Dock, Dandelion, Dayflower, Deadnettle, Dock, Dollarweed, Dovefoot Geranium, Dutch Clover, English_Daisy, False Dandelion, Field Bindweed, Field Madder, Field Pennycress, Filaree, Florida Pusley, Groundsel, Hairy Bittercress, Hawkweed, Healall, Henbit, Horsenettle, Horseweed/Marestail, Jimsonweed, Knotweed, Kochia, Kudzu, Lambsquarters, Lawn Burweed, Lespedeza, Mallow, Morningglory, Mouseear Chickweed, Multiflora Rose, Nettle, Oak, Old World Diamond Flower, Oxalis, Oxeye Daisy, Parsley Piert, Pennsylvania Smartweed, Pennywort, Pepperweed, Pigweed, Pineapple_Weed, Plantain, Poison Ivy, Poison Oak, Prostrate_Knotweed, Puncture Vine, Purple Cudweed, Purslane, Ragweed, Red Sorrel, Redstem Filaree, Redweed, Roundleaf Greenbriar, Sheep Sorrel, Shepherdspurse, Speedwell, Spotted Catsear, Spotted Spurge, Sunflower, Thistle, Velvetleaf, Venice Mallow, Veronica, Virginia Buttonweed, Virginia Creeper, Western Salsify, White Clover, White Heath Aster, Whitestem Filaree, Wild Carrot, Wild Garlic, Wild Geranium, Wild Lettuce, Wild Mustard, Wild Onion, Wild Strawberry, Willow, Yarrow, Yellow Rocket, Yellow_Woodsorrel, Ash, Aspen, Birch, Black Cherry, Chicory, Dogfennel, Elm, Gooseberry, Ground Ivy, Honey Locust, Matchweed, Mustard, Shortleaf Pine, Wild Violet |
| Time to Kill | Results may be seen within several days after application with total weed die off being seen within 2 to 4 weeks. |
| Chemical Type | Herbicide |
| Formulation | Emulsifiable Concentrate (EC) |
| Application Methods | Broadcast Spray, Spot Treatment |
| Product Drawbacks | Trimec Classic may damage centipedegrass and St. Augustine grass. St. Augustine grass is especially vulnerable during spring green-up. |
| Active Ingredient | Dimethylamine salt of 2,4-dichlorophenoxyacetic acid - 25.93% Dimethylamine salt of (+)-(R)-2-(2 methyl-4-chlorophenoxy) propionic acid - 6.93% Dimethylamine salt of dicamba: 3,6-dichloro-o-anisic acid - 2.76% |
| Application Equipment | Backpack Sprayer, Gloves, Hose End Sprayer, Pump Sprayer, Respirator Mask, Spray Rig |
| Mix Rate | Cool-season turf, use 1.2 oz. of product per 0.5 gallons of water per 1,000 sq. ft. Acre rates cool-season turf, use 3.25 pints of product per 20 gallons of water per acre. For Bentgrass, Centipedegrass, and St. Augustine grass, apply 1 fluid ounce of product with 5 gallons of water per 1,500 square feet. |
| Low Use Rate | 0.75 oz./1,000 sq. ft. |
| High Use Rate | 2.91 oz./1,000 sq. ft. |
| Use Sites | Outdoors |
| Yield | One gallon of Trimec Classic can treat up to 520 acres. |
| EPA Registration No. | 2217-543 |
| Shelf Life | Trimec Classic will last up to 3 years when stored properly in a cool, dry space. |
| Comparable Products | 3-D Herbicide, Triplet Herbicide |
| Children or pets? | Yes |
| Property Characteristics | None |
Questions and Answers
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Q:Will this product kill Alyssum desertorum (desert madwort)?6/30/22A:Trimec Classic Broadleaf Herbicide is not labeled to control desert madwort.
Amanda Chavez
7/1/22Certified Buyer -
Q:Is it effective on creeping charlie, trimec classic 2,4-d ?9/13/21A:Trimec Classic Broadleaf Herbicide is labeled to treat ground ivy, also known as creeping charlie.
Amanda Chavez
10/6/21Certified Buyer -
Q:I was told that this weed killer is safe to use when you have animals. We have 4 dogs and a pig and have avoided weed and feed due to the grazing. I was told I could put it on at noght and I would be ok. Is this true?8/26/21
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Q:What is the mixing rate for 50 gal. spreader?5/17/21
