Originally Posted by phasthound
Their is a simple little trick that will increase the efficacy of any systemic pesticide, add a small amount of humic acid and yo can reduce the rate of pesticide by up to 25%.
My Snake Oil Comment was pretty much addressing your same point. I just wasn't ready to write a book about it. But Basic Chemistry everyone should know is the pH Scale. Several pesticides will work better as alkaline solutions. Certainty/sledgehammer are perfect examples from alkaline herbicides. I add baking soda instead of acid to several pesticides.