As I read through this thread, I continue to be amazed at how often people present inaccurate information on forums. If you want to know facts about herbicides take a class on herbicides, Most State's pesticide licensing class is a good place to start, learn how to read a herbicide label (they are a bit esoteric and often poorly written). Learn to depend on the legal names and not the brand names of the ingredients. There is often more than one active ingredient. If you can't or won't do that, talking to a professional agronomist will be a lot better than learning about herbicides on a forum. Most quality agricultural outlets that sell farm chemicals (McGregor's Helena, Wilbur Ellis in my area) have agronomists that are available willing to to talk to you and lead you to the right blend of chemicals, the right application rate and application equipment, customized for your specific weeds and your specific area. Buying stuff at TSC and flying blind is a poor option.
I used to think that licensing of pesticides usage was overkill. I have seen so many people using herbicides without a clue to what they are doing, I have changed my mind. Applying pesticides intelligently is not only safer for people and the environment, it is much more effective in weed management.
