Nobody's mentioned puttin a little dish soap in the glyph mix yet, so I'll throw it in here.
1/4 cup in your 2 gallon sprayer will enhance the effectiveness of the spray, makin it go farther.
Add the water first, then concentrate then soap, so it don't foam up while mixin it.
Yep - the soap acts as a surfactant (a substance which tends to reduce the surface tension of a liquid in which it is dissolved).. Commonly used on several row crops for weed control...