On Sun, 6 Jul 2003 02:07:02 -0500, "Gordon Couger"
wrote:

There is usably some reason that a chemical that has been around that long
hasn't been cleared for north Texas and Oklahoma until this year.

If it's fenoxaprop in the formulation Puma, you are thinking of, it
was registered for wild oats in wheat in Texas/Oklahoma only last
year. However, for the same application, and with the same active
ingredient, you have had e.g. Silverado since the mid nineties.

There is usually some reason that a chemical has been cleared
and around for that long, namely that it has been found to be
safe and useful for the stated purpose.