Bests & Worsts Reviews from Amazon

A lot of people are confused about the difference between this product and Roundup, so I thought I would share a little information. The active ingredient in Roundup is a chemical called glyphosate. It was discovered by Monsanto in the 1970's and patented soon after. The patents expired in 2000, so this is a generic version of the product. Glyphosate only works on actively growing weeds and plants, so you will not get results as a pre-emergent herbicide (i.e. it will not kill seeds, or dormant weeds). The product works somewhat slowly (over the course of several days to a week or longer) because it inhibits certain plant enzymes that are required for plant life function. Because of this "slow" action, some Roundup products also include a defoliant to show more immediate "action". (The defoliant causes the leaves to drop off, but the weed would still live - it is the glyphosate that "kills" the weed). Most commercially available Roundup products contain between 1-2% glyphosate. This concentrate is 41%. Once a certain saturation level is reached within the weed, applying more (or stronger) glyphosate will not accelerate its death. It is more effective to treat several times with 2% solution over the course of a month, than to treat once with a stronger solution.