Need juuuuuuuuust a little more info here, buddy. Are you looking for a non-selective "RoundUp", or are you looking for a selective like Atrazine, 2,4-D, or what?
For RoundUp, go to your local farm/ranch supply store. Buy a 2.5 gallon jug of Glyphosate 41, it costs $60.
STOP TYPING WITH ALL CAPS, IT SOUNDS LIKE YOU'RE ANGRY!!!
2009 Dodge 2500 4x4 Diesel
2007 Chevy 1500 4x4
Kubota ZD mowers
2006 Kubota 9540 w/8 foot galvanized Modern shredder
Gravely 36 inch walk-behinds
Echo and Shindiawa handhelds
16x8.5 Heavy Duty tandem trailer