Thank you for this excellent write up.
I have a plot on a power line that was planted last year. Decent stand but is yellow. Would it be beneficial to spray and fertilize ? Also, are you tank mixing the Milestone and Clethodim ?
I haven't noticed any problem with mixing those 2 herbicides; some other combos don't work well.
If plants are yellow you need a soil test. Something isn't ideal and you won't know unless you test it. Good luck figuring it out.