Maximizing Effectiveness Of Glyphosate In The Garden

Roundup, Killzall, Pronto Weed and Grass Killer are all glyphosate herbicides used to kill unwanted plants. The efficacy of this herbicide depends on the quality of water it is mixed with.

Water hardness is a measure of how much salt is in the water, harder water indicates higher salt content. Positively charged calcium and magnesium salts are particularly problematic because they can bind with the negatively charged glyphosate molecules. This inhibits plants from absorbing the glyphosate.