Hi-Yield Triclopyr Ester

4.5 out of 5 stars 68 Reviews | 95 Q&A

Hi-Yield Triclopyr Ester

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Average Rating

4.5 out of 5 stars Rating: 4.6

68 Reviews | 95 Q&A

Product Overview

Use HI-YIELD Triclopyr Ester previously known as Turflon Ester Ultra herbicide for the control of actively growing annual and perennial broadleaf weeds and kikuyugrass in perennial bluegrass, perennial ryegrass, or tall fescue ornamental turf including these turfgrasses in golf courses. It will suppress Bermuda grass.

Features and Specs

Active Ingredient Triclopyr, butoxyethyl ester 60.45%
Target pests Black Medic, Bull Thistle, Clover, Dandelion, Ground Ivy, Kikuyugrass, Plantain, Ragweed, Wild Carrot, Wild Violet and others
* See label for complete list
For use in Perennial Cool Season grasses, Bluegrass, Ryegrass, or Tall Fescue
Spot Treatment of Ornamental Turf
Application 3/8 - 3/4 oz. per 1 gallon of water per 1,000 sq. ft.
8 - 16 oz. per acre
* See label for complete application instructions
Pet safe Yes, if used as directed on Label
Formulation Professional Product
Group 4 Herbicide
Shipping Weight 0.60 lbs
Manufacturer VPG (Mfg. Number: 35261)
UPC 732221352612
EPA Registration 81927-11-7401


HI-YIELD Triclopyr Ester is formulated as a low volatile ester. However, the combination of spray contact with impervious surfaces, such as roads and rocks, and increasing ambient air temperatures, may result in an increase in the volatility potential for this herbicide, increasing a risk for off-target injury to sensitive crops such as grapes and tomatoes.

Mixing Instructions

Add about one-half the required amount of clean water to the spray tank. Add HI-YIELD Triclopyr Ester and complete addition of water with agitation running. Mix thoroughly and continue moderate agitation while spraying. When this product is mixed with water it forms an emulsion, not a solution; separation may occur unless the spray mixture is agitated continuously.

Application Instructions

Broadcast Treatment of Ornamental Turf

Apply foliage sprays during warm weather, early spring through fall, when weeds are actively growing. Apply 1/2 to 1 quart of HI-YIELD Triclopyr Ester per acre in enough water to control broadleaf weeds actively growing in perennial bluegrass, perennial ryegrass, or tall fescue. Only emerged weeds present at the time of application will be controlled. Apply using equipment that assures uniform coverage of the target area. When treating mature plants or hard to control species, and for applications made during drought conditions, use the higher rates of HI-YIELD Triclopyr Ester. Applications made under drought conditions may provide less than desirable results.

  • 5 of 5 Stars

    Magic on Wild Violets

    By Adrienne on 04/25/2017

    I've been fighting with wild violets for about three years, tried a bunch of different products. Sometimes I'd knock them back a bit, and sometimes I'd knock the grass back a bit, but overall it was getting worse each year. This stuff works!! My only disappointment is that the violets were dead within a week; I would rather they had died a slow painful death, screaming for their mommies like little girls :) I used a pump sprayer. In 2 gallons of water I put 3 tbs Hi-Yield and 2 tbs surfactant. I sprayed just until the weeds were wet. I didn't use that blue marking dye but next time I'm going to try it. With so many violets it got hard to keep track of where I sprayed, and I missed some. Between the ones that I missed and the new ones that popped up since I sprayed, I'm going to have to do a second round. But at least now I'm winning the war. Die, you violets, die, die, die!!

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    96 of 98 people found this review helpful

  • 5 of 5 Stars

    Truly a Great Product recommendto me by an ag Lab

    By Justin on 09/08/2016

    Here is the thing it is 1 TBSP per gallon per the supplemental documents, which is 3 TSP = 1 TBSP. Get yourself a medicine measure from an old cough syrup bottle and dedicate it to herbicides (NEVER use it again for medicines or anything else). I used 1.5 (1 and a half) teaspoons and mixed it up in a dedicated sprayer with half a gallon of distilled water (it is free of all contaminants). From there I added 1 teaspoon of non-ionic surfactant for herbicides (because the product I used recommends 2 TSP/ gallon and I mixed up half a gallon.) Lastly, a blue dye that recommends 1oz per gallon. Two tablespoons is an ounce; hence one (1) tablespoon was what I used for half a gallon... In a gallon sprayer I put a nozzle on it that atomizes the spray and pumped to high pressure. Worked great completely curing my lawn of creeping vine Charlie and surges. I have Centipede grass which is a riskyer lawn to use this on per the instructions, but I had no lawn damage whatsoever on my TiffBlair type Centipede warm-season grass in West Columbia, SC. Your results may of course vary from mine which was 100% elimination of the weeds with no lawn damage, but I think most critical is the instructions by the manufacturer realizing that this small bottle is a potent product not forgiving in that you must measure accurately in teaspoons per gallon unlike diluted homeowner products. Alway wear the appropriate PPE and do a test spot to verify you have things dialed in.

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    49 of 51 people found this review helpful

  • 4 of 5 Stars

    Damned Wild Violets!

    By S. on 05/26/2014

    Verified Purchase

    Nothing I have tried previously has worked on these things; Trimec, 2-4D, some others I can't spell :) A few days after application I was weary that this wouldn't work either, but after a week there was noticeable change. Looks like this did the trick!

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    48 of 51 people found this review helpful

  • 5 of 5 Stars

    Works Perfectly!

    By Steve on 03/30/2014

    Prior to my purchase of Hi-Yield, I had only bought the "other brand" of Turflon. For the uninitiated, this is the only product safe for killing bermudagrass and several other invasive grasses from your otherwise beautiful lawn. It kills many noxious weeds without destroying a nice Marathon lawn, for instance. The price I paid for this was a bit less expensive than the other brand and worked just fine.

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    37 of 39 people found this review helpful

  • 5 of 5 Stars

    Oxalis control

    By Howard on 02/23/2016

    First product I've found that truly controls oxalis and doesn't harm grass.

    Was this review helpful to you?  YesNo

    28 of 29 people found this review helpful

See all 68 customer reviews

Questions & Answers

Have a question about this product?
How much do I use per gallon?

Hi, I was wondering how much do I use per gallon in a hand sprayer? I'm not very good in math so oz per acre is foreign to me. Thanks!

If you will be applying a foliage spray during warm weather when weeds are actively growing, use 1 Tbsp. of Hi-Yield Turflon Ester per 1 gal. of water to treat 1,000 Sq. Ft. For specific application instructions, please refer to the product label.

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189 of 202 people found this answer helpful

Will Hi-Yield Turflon Ester Ultra control wild violets? What is the proper timing to apply?

I understand that the fall is the best time to spray for this plant.


Hi-Yield Turflon Ester Ultra is labeled to eradicate wild violets. Please refer to the product label for complete mixing and application instructions. You will mix 3/8 - 3/4 oz. per 1 gallon of water per 1,000 sq. ft. You can apply this product early spring through fall for the most effective results.

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54 of 57 people found this answer helpful

Should the grass be dry or does it matter when applying Hi-Yield Triclopyr Ester?

Hi-Yield Triclopyr Ester is best applied to dry areas.  Slightly damp is ok but you do not want to apply when grass/weeds are soaked.

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47 of 47 people found this answer helpful

What time frame is Hi-Yield Triclopyr Este rain safe, hours, days?

Hi-Yield Triclopyr Ester can withstand rain 1 hour after application.

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45 of 45 people found this answer helpful

Will Hi Yield Turflon Ester kill the Bermuda grass and not harm the Fescue?

I have a lawn that is 50/50 Bermuda and Fescue. I want the Bermuda dead!! and When is the ideal time to apply it?


Per the Hi Yield Turflon Ester Product Label: Apply HI-YIELD® Turflon® Ester Ultra at a rate of 1 quart per acre. Three to four additional applications at 4 week intervals will be required to give adequate suppression of Bermudag- rass and allow Fescue or other desired turfgrass species to dominate. To improve suppres- sion and control of Bermudagrass, To improve suppression and control of Bermudagrass, tank mix 1 quart of HI-YIELD® Turflon® Ester Ultra per acre with a postemergence grass herbicide registered for this use pattern. Three to four additional applications of this tank mix at 4 week intervals should be made to achieve control. Reseeding following application will accelerate the transition to Cool Season turf.

This product only control weeds that have already emerged and that are actively growing. If your yard has started going dormant at all and your temps are not above 65 degrees at least 5 days in a row at this point in the year, then you need ot wait until next year to apply the product as you will only see spotty results now. 

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43 of 50 people found this answer helpful

See all 95 customer questions

Hi-Yield Triclopyr Ester 4.5 out of 5 stars Rating: 4.6 (68 Reviews / 95 Q&A)

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