What is the difference between ester and triclopyr?
Ester and salt forms of triclopyr rapidly turn into the triclopyr acid form in the environment. Most triclopyr is soluble in water, meaning it dissolves easily. However, the ester form is less soluble. Triclopyr has a low vapor pressure, meaning it is not likely to release fumes into the environment. 5
What is triclopyr and how does it work?
How Does Triclopyr Work? Triclopyr works much like other herbicides in that it imitates an essential plant growth hormone known as auxin. It causes the target plant to suffer abnormal growth, making it grow much faster than it should. Ultimately, this overwhelms the plant and causes it to die.
How do I apply Hihi-yield triclopyr ester?
Hi-Yield Triclopyr Ester Ultra is applied at 3/8 - 3/4 oz. (2.25-4.5 teaspoons) per gallon of water per 1,000 sq. ft. (8 - 16 oz. per acre). See label for complete application instructions. It is recommended to add a non-ionic surfactant for best results but is not required per label instructions. Was this answer helpful to you? Yes No
How much triclopyr ester ultra do I add to water?
Hi-Yield Triclopyr Ester Ultra is applied at 3/8 - 3/4 oz. (2.25-4.5 teaspoons) per gallon of water per 1,000 sq. ft. (8 - 16 oz. per acre). See label for complete application instructions. It is recommended to add a non-ionic surfactant for best results but is not required per label instructions.
What is triclopyr ester used for?
For the control of annual and perennial broadleaf weeds and Kikuyugrass in ornamental turf.
Is triclopyr safer than Roundup?
From both a human and environmental safety standpoint, Glyphosate is safer for use than Triclopyr. If Glyphosate use is a concern, consider using a natural Glyphosate alternative, such as Ammonium Nonanoate.
Is triclopyr better than roundup?
When to Choose Triclopyr. The main pro to using Triclopyr is that it doesn't damage most grasses, so it is the best choice to control woody seedlings and broadleaf weeds emerging in lawns. Glyphosate is not as good at killing woody plants as Triclopyr, and fewer plants have resistance to Triclopyr vs Glyphosate.
Is triclopyr ester safe?
While the salt form is practically non-toxic to slightly toxic to shellfish, the ester form is moderately to highly toxic. All forms of triclopyr can be toxic to algae. For fish, the acid and salt forms are practically non-toxic, but the ester form is moderately to highly toxic.
Is triclopyr toxic to humans?
Technical triclopyr acid was found to be slightly toxic by oral and dermal routes and has been placed in Toxicity Category III for these effects.
Is triclopyr harmful to humans?
The risk of acute exposure to triclopyr would be primarily to chemical applicators. Concentrated triclopyr does not pose an inhalation risk, but can cause skin irritation and eye corrosion.
How long does triclopyr stay in the soil?
The reported half-life of triclopyr in soils varies from 3.7 to 314 days, but averages 30 days, depending on the formulation applied and the specific soil and environmental conditions. If soil conditions are warm and moist, microbial metabolism can be the primary means of degradation (Newton et al. 1990).
What herbicide contains triclopyr?
Common herbicides that have triclopyr as an active ingredient include Pathfinder, Vastlan, Remedy, Garlon and Tailspin. Vastlan is an example of a product that contains triclopyr in a water-soluble concentrate.
Will triclopyr harm trees?
Broadleaf herbicide drift. These include 2,4-D, triclopyr, and dicamba and are commonly used to control broadleaf weeds in lawns, pastures, or grassy crops. These products may become a gas (volatilize) at high temperatures, causing them to drift and damage nontarget plants such as trees and shrubs.
Is triclopyr a restricted use pesticide?
Some of the products containing triclopyr BEE may be classified as Restricted Use Pesticides (RUPs).
Can you use triclopyr on your lawn?
Since it is a selective herbicide, it controls only certain types of plants. Most grasses aren't that sensitive to Triclopyr so in most cases, you can use it on your lawn without damaging your grass.
Is triclopyr safe for pets?
Answer: Hi-Yield Triclopyr Ester Ultra is pet safe if used as directed. Pets and people should be kept out of the area while the product is being applied. Once the treated area has fully dried, it is safe for everyone to return.
What is Triclopyr Ester used for?
According to the Hi-Yield Triclopyr Ester product label, it is a herbicide used to control unwanted annual and perennial broadleaf weeds on perennial bluegrass, perennial ryegrass, and tall fescue ornamental turf (including sod farms, commercial turf, and golf courses).
Can you use Turflon Ester Ultra on wild violets?
Yes, a non-ionic surfactan t can be added to Hi-Yield Turflon Ester Ultra when being applied to wild violets. The mixing ratio for the surfactant is 1-2 teaspoons per gallon of water. However, if you are treating in your lawn, do not use a surfactant as you could burn your lawn.
What is triclopyr used for?
Triclopyr is used to control broadleaf weeds while leaving grasses and conifers unaffected or to control rust diseases on crops. Triclopyr is effective on woody plants and is used for brush control in the right of way and defoliation of wooded areas. In the USA it is sold under the trade names Garlon, Remedy, and many others, ...
What is the trade name for weed-b-gon?
It is sold under the trade names Turflon, Weed-B-Gon (purple label), and Brush-B-Gon ("Poison Ivy Killer") for these purposes. It is a major ingredient in Confront, which was withdrawn from most uses due to concerns about compost contamination from the other major ingredient, clopyralid .
Is triclopyr ester toxic?
Garlon's fact sheet for their triclopyr ester product indicates that triclopyr is highly toxic to fish, aquatic plants, and aquatic invertebrates and should never be used in waterways, wetlands, or other sensitive habitats. [1] . This is only for the triclopyr ester product, not for the triclopyr amine product.
What is Triclopyr?
Triclopyr is a unique man-made herbicide that is meant to control woody and broadleaf plants. It’s been around for quite a while, first registered in the late 1970s for use in forestry, agricultural, and non-agricultural settings.
How Does Triclopyr Work?
Triclopyr works much like other herbicides in that it imitates an essential plant growth hormone known as auxin. It causes the target plant to suffer abnormal growth, making it grow much faster than it should.
Benefits of Triclopyr
There are multiple benefits associated with using Triclopyr on your most stubborn weeds.
What Weeds Will Triclopyr Kill?
Triclopyr can kill many different kinds of weeds and unwanted plants, however it is mainly used to control invasive woody/vine species and ground clover. While it can kill the more common dandelions, there are better alternatives to combat these including Dithiopyr.
Best Triclopyr Products to Consider
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.
How To Apply Triclopyr
Triclopyr is easy to apply and it works quickly and systematically, working through plant tissues and killing the plant by affecting its growth and development.
Is Triclopyr Safe?
When used as directed, Triclopyr is perfectly safe to use. Make sure you stay off the treated area until the product has completely dried and don’t use it in areas where pets or small children might be hanging out.
How long does triclopyr degrade?
Triclopyr is broken down rapidly by light and microbes and has a half-life (the time it takes for half of the active ingredient to degrade) of about a day. Dissipation studies in lakes indicate that the half-life in natural systems ranges from 0.5 to 7.5 days. Lakes with more organic matter in the soil will have more rapid degradation. The initial breakdown products of triclopyr are TCP (3,5,6-trichloro-2-pyridinol) and TMP (3,5,6-trichloro-2-methoxypridine). TCP and TMP appear to be slightly more toxic to aquatic organisms than triclopyr; however the peak concentration of these degradates is very low following treatment, so that they do not pose a concern to aquatic organisms. The half-lives for TCP and TMP are similar to those of triclopyr. Triclopyr doesn’t bind to soil, and limited leaching of triclopyr and its degradation products may occur. It likely is not mobile enough to contaminate groundwater, and EPA has determined that the evidence of possible leaching is not sufficient to require further study.
What is triclopyr acid?
Triclopyr acid has different formulations for aquatic and terrestrial use. The active ingredient triethylamine salt (3,5,6-trichloro-2-pyridinyloxyacetic acid), commonly called triclopyr, is the formulation registered for use in aquatic systems. It is sold both as a liquid (Renovate 3™) as well as a granular form (Renovate OTF™) for control of submerged, emergent and floating-leaf vegetation. There is alsoa liquid premixedformulation (RenovateMax G™) that contains triclopyr plus 2,4-D, another aquatic herbicide.
Is triclopyr toxic to fish?
Testing indicates that the aquatic formulation of triclopyr is practically non-toxic to fish and invertebrates. Species tested included catfish, trout, bluegill, minnows, crayfish and water fleas (Daphnia sp.). Triclopyr is slightly toxic to mallards, but at concentrations well above (400x) the highest allowed application rate. Water pH will affect toxicity because greater exposure to triclopyr will occur in low pH water. Tests have not been conducted in low pH water except for salmon species. However, the margin of safety in the toxicity tests that were conducted suggest that even in low pH water there would not be toxic effects on fish. Tests on the degradation product TCP indicate that acute effects to bluegill and rainbow trout would not occur at label usage rates, although it is slightly more toxic than triclopyr. The degradation product TMP is moderately toxic to fish, but after treatment is found only in low proportions if it is detected at all. The EPA has requested additional data to evaluate the fate of the degradation product TCP in aquatic systems as well as its chronic toxicity to fish. Triclopyr and TCP do not bioaccumulate and clear from fish and crayfish tissues at rates similar to that which occurs in the water. TMP does appear to bioaccumulate in fatty fish tissues, such as inedible and visceral tissues, but does not persist in fish following TMP disappearance from the water.
Can you eat fish from treated water?
There are no restrictions on swimming, eating fish from treated water bodies , or pet/livestock drinking water use. Before treated water can be used for irrigation, the concentration must be below one part per billion (ppb), or at least 120 days must pass. Treated water should not be used for drinking water until concentrations of triclopyr are less than 400 ppb.
What is triclopyr used for?
It may also be used as one ingredient in a multichemical herbicidal mix that collectively works as a nonselective herbicidal combination. The chemical triclopyr is an ingredient in more than 200 commercial weed killers, including Garlon, Pathfinder, ...
What is the chemical that kills weeds?
Triclopyr is the name of the chemical agent that kills weeds, but there are more than 200 products with different trade names that contain this ingredient. Common herbicides that have triclopyr as an active ingredient include Pathfinder, Vastlan, Remedy, Garlon and Tailspin. Advertisement.
How long does it take for triclopyr to kill plants?
It is slow-acting, and it doesn't immediately kill a plant. Typically, it takes weeks after applying triclopyr before a plant dies. It's available in different formulations, including water-soluble concentrates, oil-soluble concentrates and ready-to-use, oil-based concentrates. Advertisement.
What is Vastlan used for?
Used alone, Vastlan is applied to the foliage or on the cut stems of woody plants to kill them as a selective herbicide without harming grasses.
Is Triclopyr a selective herbicide?
Synthetic chemicals used as herbicides are nonselective, which means they damage or kill almost every type of plant they contact, or they are selective, which means they damage or kill only certain weeds. Triclopyr is a selective herbicide, targeting broadleaf and woody plants instead of grassy plants. It may also be used as one ingredient in ...
Is triclopyr water soluble?
Advertisement. Triclopyr is highly water-soluble, allowing it to move throughout the soil, where it may also linger. It's best for the environment to use only enough of this chemical to kill weeds and reduce its concentration in the soil.
Can triclopyr cause eye problems?
Different forms of triclopyr cause eye problems. Some only cause irritation, but other products may cause permanent eye damage, which is why it's very important to wear safety goggles when handling, applying or disposing of this chemical. Advertisement.
What is the combination of glyphosate and triclopyr?
The combination of the herbicides glyphosate and triclopyr satisfies the objectives for an herbicide mixture, providing a wide control spectrum and timing window, minimal non-target impacts, and the ingredients are readily obtained and easy to use.
What is glyphosate plus triclopyr?
A mixture of glyphosate plus triclopyr is a useful standard mix for managing most vegetation targets. It has broad activity, and low risk to non-targets, and is economical both in terms of per-acre cost and container size, for the commercial applicator or the individual landowner.
Why is herbicide mixture important?
An effective herbicide mixture increases the species control spectrum and utility over the individual ingredients used alone. An ideal mix for invasive species management would effectively control all targets you encounter so that you don't have to make multiple passes through an area.
Why use acid equivalent?
Use acid equivalent to compare products, as "active ingredient" can cloud the issue when comparing different formulations. Product rate will vary, as both herbicides are available in different formulations with different concentrations. Mixing to apply a specific dosage requires sprayer calibration.
Is triclopyr more complex than glyphosate?
Choosing a triclopyr product is more complex than for glyphosate because there are several distinct formulations, summarized in Table 1. Until recently, the choice was simple, as the choice was using the water soluble, aquatic-labeled 3-pound gallon (e.g. "Garlon 3A") or the oil-soluble, terrestrial-only, 4-pound gallon (e.g. "Garlon 4 Ultra"). The oil-soluble formulation readily mixes in water, and has a more favorable Signal Word (CAUTION compared to DANGER for "Garlon 3A"), but due to the lack of aquatic labeling and increased chance of volatilization in hot weather, the water-soluble form was the logical choice. The drawback is that applicators also making basal bark applications had two forms of triclopyr in inventory.
Can you mix herbicides to kill weeds?
OK, a single herbicide mix will not address every weed management situation. However, a mixture of the herbicides glyphosate and triclopyr can address most invasive plant species issues, particularly if you are foliar spot-treating target weeds (Figure 1). This article will provide details showing this mixture is effective, versatile, ...
What are some examples of glyphosate?
The ingredients will be 54 percent by weight of the isopropylamine salt of glyphosate. Product examples include (but not limited to) "Rodeo", "AquaNeat", "AquaPro", "AquaStar", "Glyphosate 5.4", and "Roundup Custom".
What is drift in herbicides?
In most cases, drift is a result of 2, 4-D's volatility; when it vaporizes and moves to a non-target area. This can (and does) occur with several other commonly used herbicides. 2, 4-D and other herbicides are commonly formulated as either an amine salt or ester. Esters have higher vapor pressures than amines.
What happens when a chemical is absorbed into a plant?
Once the chemical is absorbed into the plant (either amine or ester), it is converted to the active acid, which in turn injures or kills plants that are susceptible to the respective herbicide. As we all know, correct timing is crucial for acceptable weed control.
When to use esters?
During cooler weather (March, April, and early May), ester formulations can be used safely, and typically provide better weed control than amines. As temperatures increase, esters are more prone to volatilization, and a switch should be made to amine formulations if drift is a concern.
When to use ester herbicide?
Consider using ester formulations in the early spring, for hard-to-control weeds, or for spot spraying small areas.
Can amines harm grass?
In warmer temperatures, amines and esters have about the same effect on weed control. Some esters are also "hot", and can injure grasses when temperatures are too warm. Most herbicide labels list a temperature range in which they should be used, so be sure to follow these recommendations.
Is ester soluble in water?
The answer to this question is not cut-and-dry. Ester formulations are typically more active on weeds in comparison to amines. This is due to the fact that esters are more soluble when in contact with the plant's waxy cuticle. Plants are more likely to quickly absorb esters, as amines are more water soluble. Once the chemical is absorbed ...
Is amine salt more volatile than esters?
Even though there are some "low volatile" esters available, amine salts are generally less volatile than esters. Amine formulations are typically used in landscape settings and scenarios when drift is a primary concern.
