Agri Star Triclopyr 4E Herbicide, 1 Gallon

This item Triclopyr 4E is a cost-effective solution to kill brush and other woody plants. It is identical to the name brand Garlon 4 Garlon 4 Ultra Triclopyr herbicide for fence rows and more except in a 1 gallon container rather than the typical wholesale size of 2.5 gallon.Triclopyr vs Glyphosate-----------------------Triclopyr is the herbicide of choice for woody plants: shrubs, trees, black berry, Scotch Broom, and many other shrubs. Compare this with glyphosate, the active ingredient in RoundUp, that is very effective against leafy plants such as most weeds, but a poor choice for woody plants such as shrubs and trees.Safety------Tryclopyr is relatively safe to work with and for livestock, wild animals, and the ultimate runoff into streams and lakes. I know that Washington State uses triclopyr to control brush along the state roadways. You will, of course, want to read the label carefully and a web search will turn up many studies of the use of triclopyr."Cut stump method" for killing stumps------------------------------------The commonly used RoundUp (Glyphosate) is not very ineffective for killing trees. Even a small sapling may take repeated soaking sessions with glyphosate to kill the plant.Triclopyr is very effective in killing trees. Full concentrated triclopyr (60%) will kill even a very large stump in one application using the "cut stump" method. After cutting the tree, apply full concentration (60%) triclopyr promptly to the freshly cut wood. You can paint it on with a small brush or use a squirt bottle. I wet the full surface of the fresh cut although a smaller amount might be sufficient. If you have an old stump that is re-sprouting, cut into the green wood and apply the triclopyr to the freshly cut green wood. If you apply the triclopyr promptly (not more than about 30 minutes after making the cut) the chemical will be best distributed into the stump and to some extent into the roots."Relative cost"---------------This particular item is one gallon of the highest concentration of triclopyr. It is a generic form of Garlon 4. Both are packaged at about 60% concentration, which is the maximum or "full" concentration available.The maximum concentration is by far the most economical.For this item my cost was $96.95 + $15 (shipping) = $111.95 for one gallon of maximum concentration.For property I own in Washington State I buy another generic product Element 4 (also 60%) at a farmers supply store. I buy 2.5 gallons for $180. So the cost per one gallon of full concentration is $72. So if you have a lot of land, the farmers supply store is your best choice.Triclopyr is the active ingredient in Ortho Poison Ivy & Brush Control.Locally 1 qt of Ortho concentrate is $15.73 with 8% concentration, so the price equivalent to one gallon of maximum concentration is approximately $472 vs $112 for Triclopyr 4E.Even worse, the premixed Ortho is $16.98 for one gallon with a concentration of only 0.7%. This gives a cost of approximately $1,455 vs $112 for Triclopyr 4E.So prices to get the same one gallon of maximum concentration of 60% are:Triclopyr 4E from Amazon, $ 112Element 4 from farm supply store, $ 72Garlon 4, $ 142Ortho concentrate at local hardware store, $ 472Ortho pre-mix at local hardware store, $1,455So if you need a fair amount of triclopyr this item from Amazon is at a very good price point.

We successfully used Agri Star Triclopyr 4E to control "Lamium" galeobdolon (yellow archangel). Mixing from concentrate is *significantly* less expensive than ready-mixed name brands. One gallon of the concentrate should make 64-128 gallons of mix.I followed this advice with very good results:https://www.amazon.com/review/R1QWCWFWZY4Y0Y/ref=cm_cr_dp_title?ie=UTF8&ASIN=B004S70RK4&channel=detail-glance&nodeID=2972638011&store=lawn-garden1 gallon of Tryclopyr 4 spray. Recipe and mix order:- ½ gallon of water- 1-2oz Agri Star Tryclopyr 4E- 16oz light oil (diesel or veggie oil), as surfactant.- 2-3oz Mark-It Blue, as spray indicator.- Water to fill 1 to gal.- 2oz dish soap as emulsifier (add last to avoid excessive foaming)- Mix wellOur experience with Tryclopyr 4:- Extremely good results controlling lamium.---- 1-2 days to see slight withering.---- ~1 week to be convinced that treated plants are no longer thriving.---- Brown and dead by 1 month.- Spot treatment was required afterwards for small patches missed on first round.- Used either light machine oil and veggie oil with good results.- Spray indicator “Mark-it-blue” was extremely useful.- I feel confident selectively spraying while avoiding nearby desirable plants (except around vine maples)- Used in both 1 gal handheld sprayer and 4 gal backpack sprayer.Note there are two formulations of Tryclopyr:Tryclopyr 3 (Amine)o Water solubleo Available up to ~44% concentrateo More prone to ground water contamination(?)o Not volatileo Tryclopyr 3 bottom line: Easier to use and distribute but more expensive.Tryclopyr 4 (Ester)o Oil solubleo Available up to ~61% concentrateo less prone to groundwater contamination(?)o more volatile – vapor is harmful and can damage off-target plantso Tryclopyr 4 bottom line: Less expensive and possibly more effective but harder/more unpleasant to use.General advantages of Tryclopyr 3 or 4:- Selective: targets woody plants.- Does not harm grasses.- Short half-life as it is rapidly broken down in the environment.- It’s been around for a long time with a lot of toxicity research data concluding:[Link deleted]---- Nominally or practically non-toxic to humans, animals, birds, fish.---- It’s excreted by animal renal systems and does not accumulate in the food chain.Our observed disadvantages of Tryclopyr 4:- Slight oily smell present for weeks after application.- Vine maples show unintended damage near heavily sprayed areas. I suspect vine maples are highly susceptible to the volatile ester’s vapors. “Triclopyr ester is volatile and, therefore, can be absorbed by plants as a vapor, which can cause unwanted damage” [Link deleted]Here is the best article I found which details an interesting experiment testing various herbicides for controlling lamium (Tryclopyr is the favorite). [Link deleted]Triclopyr fact sheet: [Link deleted]