I did not treat any stumps... I was in such a hurry to get it seed ready I guess I just plain forgot. It is right behind my house so I will be able to keep an eye on the regrowth with out having to venture through it too much. Spot spraying and burns should keep them at bay i'm hoping. otherwise I guess I could still go out and treat the stumps seeing as I just tilled around them with a harley rake.
Really curious how your project turns out. We have timber to thin and will be faced with the same situation as you. Please post pics of your progress over time.
The cut stumps seal over pretty quick after cutting making it harder for the herbicide to work with a delay period. Best if one guy cuts and another treats, or you cut a half dozen then stop and treat. If I'm cuttin a large spot I'll leave the stumps about 18-24" high initially. Then when the other work is done, I'll come back as a last step and cut the stumps lower then treat.
Anyway, for your situation now, if you could just cut a thin slice off the stumps to expose fresh wood and then treat with a mix of 1 quart of Remedy Ultra + 3 quart of diesel, that should give you good control. Treat the cambium layer and outer bark down to the soil all the way around....'don't miss a spot'. You can always dig a few inches of dirt from around the stump with your boot before spraying to expose more bark and get better coverage. I like to leave a 2-4" stump when treating....seems to work best that way.
Resprouts from exposed roots or other smooth bark stage saplings can also be controlled with the above coctail by treating from about 12" high down to soil level...again 'don't miss a spot'. You can do this anytime of year, except for during dought, snow cover, or water inundation.
There is also an RTU formulation of Remedy which requires no mixing, but it's much more expensive than the Ultra mix in the long run. 1 gal of RTU is $45 here while Ultra is $70/gallon but makes 4 gal of mix.
Get a decent 2 gal pump-up sprayer with chemical resistant o-rings and gaskets (ie viton), like the Do-It Best or Solo models. Cheap sprayers don't last too long. We have the 'honey bee' (yellow and black) looking Do-It Best sprayer and really like it.....wide mouth construction for 'easy fill no spill'....protected threads so junk accumulating on top of tank doesn't get inside and clog the tip....4 yr warranty.....only takes 1-3 pumps for sufficient pressure when treating stumps/sprouts.
Foliar applications of Remedy don't work very well on trees, because most will shed leaves before sufficient hebicide is absorbed for effective control. The sprayed tree will be 'suppressed', but that only means one thing....more sprouts from the roots or root collar.
For foliar application on trees, I've had the best luck with 3% gly application late summer. But that nukes any vegetation under the drip line too! :thrwrck: Takes about 2 yr for the tree to start rotting.
That is a few easy options for you. Whatever you treat, just let it sit for a year before cutting or disturbing. Think you'll be surprised how fast the stumps rot after Rem/diesel treatment.