Don't burn firewood but I have heard it burns like coal.
I recieved a response today from Jane Hanson, a pasture and range specialist with Dow AgroScience. She recommended a chemical called Remedy and stated it had more activity on Osage than Tordon. Mrs. Hanson said to mix 1 part Remedy with 3 parts diesel fuel (or some kind of oil carrier). She said to apply this mix to the bottom 15" of the trunk, all the way around, as if you were painting it. Then let the tree stand for about a year to allow it to fully kill the roots. She said it was unnecesary to score the bark in any way, and it can be used the same way to treat stumps covering all of the exposed surface.
Mrs. Hanson also stated Remedy herbicide has no soil residual, and it will not harm neighboring trees you want to keep.
Really this sounds perfect. Quick and easy. Wouldnt even have to thin the timber by cutting the trees, but would stop growth and further seeding.
The only drawback I can see, other than unknown cost, is that I'm not crazy about spreading stinky diesel fuel all over the timber I deer hunt, but if done in the spring I suppose it wouldnt hurt.
Have not recieved a response from Robert Hibbs, DNR forrester.
Thanks to NW IA Scrapper Buck for PM'ing me the link to Mrs. Hanson.
Maybe this info will help you guys out too. Anyone used Remedy before or have an idea of cost?