This last week I have been doing some research on Glyphosate for a special use. I wanted a consistant product that didn't vary from batch to batch. What I didn't know was the Generic labeled Glyphosate I been buying, is in fact Roundup Pro formulated and Manufactured by Monsanto. However it is packaged by my supplier from tanker cars. I am paying about $ 14.50 a Gallon. My supplier is in a Buying cartel with other suppliers and must use the Monsanto Generic brands by Mutual buying agreement. BTW Monsanto no longer makes a 41% Glyphosate product and Labels it as Roundup. My Supplier also said they were losing business to Chinese made Glyphosate selling for $ 12.00 and less per Gallon. They claim and I believe them, Chinese Glyphosate is 41% but it doesn't have the surfactants like sticker and Defoamer. They also said you can test your Generic Glyphosate by simply shaking a ready to use mix and seeing if if Foams up. How does this effect your non-select use of Glyphosate???? If the Chinese stuff isn't working real great. You might want to add some spreader sticker if you have the Chinese stuff, for a better knock down. BTW My supplier also tells me they sell 10 times the amount of Roundup Quick Pro that they do Regular Glyphosate.