• Call (800) 479-6583
  • Mon-Fri 8am-5pm
  • |
  • Sat 9am-5pm


If you own a ranch or work in the agricultural industry, or even if you own a residence, invasive weeds like buckthorn, honeysuckle, poison oak and other types of invasive brush can often spring up where they aren’t wanted and interfere with the growth of desired vegetation. 

When this happens, using non-chemical control methods like manual pulling or cutting may not be a permanent solution and can also be laborious and time-consuming. That is why using a chemical control method may be necessary to eliminate unwanted brush. An active ingredient by the name of triclopyr is highly recommended to do the job.

Here at Solutions Pest and Lawn, we get a lot of customers that contact us who are dealing with tough broadleaf weeds invading their vegetations and crops they are trying to grow. More often than not, we recommend them to try triclopyr-based products to eliminate those hard to control weeds that ruin their gardens, ranges and pastures. Learn more about triclopyr on this page and shop our triclopyr-based products here.

What Is Triclopyr?

Triclopyr (Chemical name: 3,5,6-Trichloro-2-pyridinyloxyacetic acid) is a selective herbicide which targets broadleaf plants (like forbs, shrubs and trees) and can be used in grasslands or areas where desirable grasses are growing under or around targeted woody or broad-leaved invasives. 

There are two forms of Triclopyr--amine and ester--which vary in terms of the species they can treat and methods of usage. Solutions carries the ester variation which is best for penetrating bark and can be used for foliar, cut stem and basal bark applications. It has also been used as an aquatic herbicide for some weeds which grow on ponds and lakes. Triclopyr 4 Brush Killer is the same product as the popular Garlon 4 herbicide.

Triclopyr was originally registered in 1979 as an herbicide on non-crop areas and in forestry use for the control of broadleaf weeds and woody plants. A different formulation known as Triclopyr BEE was later registered in 1980 for use on the same sites. Both formulations were registered for use on turf sites in 1984. 

How Does Triclopyr work?

Triclopyr’s mode of action of controlling target weeds is by mimicking the plant hormone auxin, causing uncontrolled plant growth.  In soils, both formulations of triclopyr degrade to the parent compound, triclopyr acid. Degradation occurs primarily through microbial metabolism, but photolysis and hydrolysis can be important as well. 

Triclopyr is a systemic herbicide that moves throughout the plant tissue and works by interfering with cell growth and division. Following treatment, plant growth will be abnormal and twisted, and then plants will die within two to three weeks after application. Plants will decompose over several weeks.

Browse our selection of triclopyr contained products below. For more information about triclopyr or other active ingredients in our herbicides, reach out to us with your questions at 800-479-6583 or email us at askapro@solutionsstores.com.


Featured Products Which Contain Triclopyr

Triclopyr 4 Brush Killer - Triclopyr 4 Herbicide is the same as Garlon 4 Herbicide and is designed to control mesquite, sumac, tallow, poison oak, cactus, and other heavy brush. It can also be used basal treatment to kill large trees. Triclopyr 4E provides excellent selective control of of brush and broadleaf weeds without damaging grasses.


Ecotriclopyr 3 SL Aquatic Herbicide - Ecotriclopyr 3 SL Aquatic Herbicide (generic Renovate) by Alligare LLC is designed for control of woody plants, vines, and aquatic plants on wetland sites in production forests and industrial non-crop areas. Ecotriclopyr can also be used in aquatic sites such as ponds, resevoirs, non-irrigation canals, lakes, and ditches which have little or no outflow.


Remedy Ultra Herbicide - Remedy Ultra Specialty Herbicide for the control of woody plants and broadleaf weeds on rangeland, permanent grass pastures, and conservation reserve program (CRP) acres (including fence rows and non-irrigation ditch banks within these areas).


Is Triclopyr Safe To Use?

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. Persons who mix or apply triclopyr need to protect their skin and eyes from contact. In its consideration of exposure risks, the EPA believes no significant risks will occur to recreational users of water treated with triclopyr.


It is recommended that when handling triclopyr (or any of the other chemicals we carry) to use proper personal protective equipment (PPE) before handling or applying. Gloves, goggles, long sleeved clothing should be the minimum standard. Please refer to the label for proper safety instructions.

Contact Us