When I learned about glyphosate (say 1995), it was being sold to homeowners as "Roundup" at $100.00 per gallon. I couldn't stomach that cost to kill weeds in my wildlife food plots, though it continued to be heralded by internet food plotters as "significant" in controlling emergent plants. So much so that I contacted my fertilizer and seed distributor and learned about Credit Extra, a 41% concentrate of glyphosate, for $17.00 per gallon in bulk quantity. A 2.5 gallon jug of Credit Extra makes over 200 gallons of 0.50% concentrate, which is enough to keep me in control of air potato, johnson grass, sandspur, and all other emergent vegetation prior to planting food plots. I just added another 5 gallons to my stores for current and future use.