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Remedy Ultra (Triclopyr) Mix Calculator: Foliar, Basal Bark & Per-Acre

Remedy Ultra (61% triclopyr ester) is the pasture and brush standard, and it's really three products in one label: a water-based foliar spray, an oil-based basal bark treatment, and a broadcast pasture herbicide — each with different math, different carriers, and different seasons. Mixing the right rate with the wrong carrier is the classic Remedy mistake: a 25% mix in water instead of oil wastes sixty dollars of herbicide on bark it can't penetrate. Pick your method below.

⚠️ Water vs oil is not interchangeable: foliar sprays use water; basal bark and dormant-stem treatments use basal oil or diesel — the oil is what carries triclopyr through bark. Check which section of the label you're mixing from before measuring anything.

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Remedy Ultra Calculator — All Three Methods

Foliar percent solution, basal bark oil mix, or broadcast pints per acre.

Choosing the method: it's a calendar question

Foliar spray — full leaf, growing season

Individual-plant treatment at 0.5–2% in water works when brush is in full leaf and actively growing — typically late spring through early fall. Wet the canopy to the point of drip, not past it. Waxy-leaved species shed water-only spray, so the label directs adding surfactant; for tough brush, methylated seed oil is the step up — MSO surfactant↗ is built for exactly this.

Basal bark — the leaf-off method

The 25%-in-oil mix applied to the lower 12–18″ of stems (under ~6″ diameter, full circumference) works when foliar can't: winter dormancy, sensitive crops nearby, or stems hiding inside grass you want to keep. The oil carrier is the mechanism — it moves triclopyr through bark into the cambium. Basal oil is formulated for it; diesel works per many labels but smells like it. This is precision work best done with a small pump sprayer and a low-flow adjustable nozzle↗ — you're painting stems, not spraying foliage.

Broadcast — pasture scale

Boom or boomless at 1–4 pints per acre by species, commonly in 10–20 GPA of water. Rate selection is species-driven — mesquite, huisache, blackberry, and locust each get their own line in the label's tables, and several want specific timing windows (mesquite famously 40–90 days after bud break). Grazing: most beef uses carry no restriction, but lactating dairy and hay cutting have intervals that depend on rate — the grazing table is a must-read, not fine print. For the water math, the GPA calculator pairs with the per-acre tab above.

What Remedy is — and when it's the wrong bottle

Triclopyr is selective for broadleaves and woody plants: it clears brush while grasses keep standing, which is the entire economics of pasture spraying — kill the mesquite, keep the forage. That selectivity also defines its limits. It won't touch grassy weeds, and if the goal is bare ground rather than saved grass, you want glyphosate or RM43's residual mix instead. One more ester caution: like 2,4-D esters, triclopyr ester volatilizes in high heat — avoid spraying foliar mixes into hot, still afternoons near gardens, vineyards, or susceptible ornamentals.

A same-chemistry option worth knowing: Brushtox (Ragan & Massey) is also straight triclopyr butoxyethyl ester, just at a higher concentration — 61.6% versus Remedy Ultra's 44.4%. Same herbicide, same selectivity, but the stronger concentration means Brushtox's oz-per-gallon numbers run lower for the same finished rate. Don't carry Remedy's mixing numbers over if you switch products — work from Brushtox's own label percentage instead.

FAQ

How much Remedy Ultra do I mix per gallon of water?

For individual-plant foliar sprays, labels typically direct a 0.5–2% solution — 0.64 to 2.56 fl oz per gallon of water, with 1% (1.28 oz per gallon) a common starting point for mesquite, huisache, and general brush. Species and season set the exact percent; the foliar tab above does the math.

What is the basal bark mix for Remedy Ultra?

The standard is 25% Remedy Ultra in a basal oil or diesel carrier — no water. That's 32 fl oz of Remedy per gallon of finished mix, applied to the lower 12–18 inches of stems under about 6 inches in diameter, wetting the full circumference. Oil carries triclopyr through bark; a water mix cannot do this job. See the method details above for the full walkthrough.

How many pints of Remedy Ultra per acre for pasture?

Broadcast rates on the label typically run 1–4 pints per acre depending on the brush or weed species and density, typically applied in 10–20 GPA. Rate selection is species-driven — the label's tables list rates by target — and grazing and haying restrictions vary with the rate applied. The per-acre tab above totals product for your acreage.

Can cattle graze after spraying Remedy Ultra?

The label sets the rules, and they differ by animal class: there is no grazing restriction for most beef cattle uses, but lactating dairy animals and slaughter withdrawal have specific intervals, and hay harvest carries its own waiting period. Read the grazing and haying section of the current label for your rate and stock before turning animals in.

What is the difference between Remedy Ultra and glyphosate for brush?

Triclopyr (Remedy) is a selective broadleaf and woody-plant herbicide — it kills brush while leaving grasses standing, which is the entire point in pasture. Glyphosate kills the grass too. Remedy also offers the basal bark method for leaf-off seasons, which glyphosate has no equivalent for. For non-selective total control, glyphosate or RM43 is the tool instead.

What is the difference between Remedy Ultra and Brushtox?

Both are straight triclopyr butoxyethyl ester — the same herbicide chemistry — but at different concentrations: Remedy Ultra is 44.4% triclopyr, Brushtox is 61.6%. Because Brushtox is more concentrated, its label calls for less product per gallon to hit the same finished rate — don't carry Remedy's oz-per-gallon numbers over to Brushtox or you'll under-treat.

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Important note

Rates here reflect common Remedy Ultra label directions; the current specimen label is the legal document — its species tables, grazing/haying restrictions, and drift precautions govern. Triclopyr ester products carry heat-volatility cautions. Wear label-required PPE including chemical-resistant gloves↗. Affiliate links support the site at no extra cost to you.