I would like to know because I have plenty of hardwood trees I want to kill and need the best bang for my buck. I am leaning toward triclopyr. I will be brushing it in to a fresh stump or cut on tree.

The most powerful tree killer I know if is picloram i.e. Tordon. Requires an applicator license to buy the concentrate, but the premixed solution (sold as stump killer) can be purchased by anyone. Even spraying the solution on the bark of a tree will generally kill it. Be advised it does have "carry over" which means it will keep killing any broadleaf plants in the immediate treatment area, for up to a year.

Do you any store chain to recommend that sells a "stump killer" or that 41& generic glyphosate product....can I find any at Lowe's, Home depot etc?

Farm stores carry Tordon stump killer and glyphosate. Around here it's Tractor Supply, and Orscheln.

Below is a link to an outstanding article with the details of herbicide use. Here's the bottom line: you can use the pre-mixed Tordon RTU, a 20% glyphosate concentration, or a 4% Crossbow concentration in diesel fuel. You're much better off using the Crossbow in diesel. Tordon is $120 a gallon, while the glyphosate and Crossbow mixes will net to about $5 a gallon! You use the same amount! And with the Tordon and glyphosate you must paint the stump immediately after cutting. With the Crossbow you can go back several days later.

My method is to mix the Crossbow and diesel in a backpack or garden sprayer, add some red dye to the mix, then spray the stumps. No need to bend over. With this mix you can ever kill the bush or tree by simply applying it to the uncut trunk (basal application).

Good luck. The war on honeysuckle is difficult but important.

Controlling Invasive Species

One can buy Tordon RTU stump killer for about $12/quart on sale.

I agree glyphosate is still a lot cheaper, and so if you have a lot of trees to get rid of, is a better value.

Tordon however, is more effective than anything else I've ever used. Even at a very diluted rate to control thistles, it would kill trees if enough of it landed on the bark.

thanks

Painting the entire cut surface of a stump is wasteful, as the sapwood, or xylem, only carries sap upward from the roots, and of course the heartwood is dead tissue that doesn't carry anything anywhere.

I've had great success over the years painting triclopyr on the phloem of freshly cut stumps with a small paintbrush, or by pouring very small amounts with the cap over the same. A little goes a long way. The cheapskate in me gets pleasure from having maximum results from minimal input, and I've never had any nearby plants show damage. I used to use Ammate (ammonium sulfamate, I believe it was) in the old days, if anyone is old enough to remember that stuff. Yellow crystals.

This round-up I put on the pesky weed/red twig mess I created will probably need another application to do the job and I STILL need to go clean the dead weeds and red twigs. I used the poison due to the type of vines and suckering red twigs. What ya up to?

Tordon can travel through the roots of treated plants to roots of untreated plants.

Painting the stumps w/ glyphosate is considerably safer than painting w/ tordon.

Tornado,

Around here, a chainsaw won't kill most trees. They sucker up from the stump, if the stump is untreated.

If the trees are small enough to mow with a shredder/rotary mower, you can kill them that way. A shredder will shatter the stump and for some reason this will discourage suckers from coming up, except for hedge and locust. Those trees have to be sprayed, or the roots will continue to send up suckers.