Any possible way you could safely burn it? If not what about a small area just for comparison purposes?
Here is a couple pastes of Oust info from Dbltree's Corner over on Iowa Whitetails:
By now most are aware of Keystone Pest Solutions as an online source for most of the herbicides we may need if you can not find it locally. They also often carry smaller quantities if you don't need a 2 1/2 gallon jug of something.
Keystone Pest Solutions
Search "Oust" on their site for instance and you'll find a generic alternative "Spyder" and if you can't find something give them a call and ask for help or encourage them to carry something you may need.
Oust is used for tree plantings and I also use it to release established switch and other NWSG plantings. One only needs 1-2 ounces per acre and Jef Hodges of
TRM will sell it in small quantities of 2 or more ounces. Email:
bobwhite@iland.net
Spyder is a generic version and right now the lowest price I have found is at
Keystone Pest Solutions
if you locate other sources please share via this thread...
In many ways like the pharmaceutical drug industry, herbicide patents expire and generic versions become available for a fraction of the original cost...here are just a couple in which prices have dropped significantly
SFM 75 is a generic version of Oust XP and far less expensive...for pre and post emergence control of most grasses and broadleaves in hardwood and conifer plantings and release of established NWSG (2nd/3rd year minimum)
SFM 75 herbicide source
SFM 75 Label
I miss having Paul around for discussions like this.