1) In using MSMA to control crabgrass, the bottle says not to use a hose-end sprayer. Can anyone educate me as to why not? I use the sprayer for Atrazine & 2-4,D, as well as bug sprays, why not MSMA? 2) Can I mix MSMA & 2-4,D in the same sprayer? Was thinking of it as a double-whammy against the crabgrass & other broad-leaf weeds in the yard. Would use this as a spot-treatment, vs. spraying the whole yard with chemicals, I figured this would be a better approach than using so many chems to do the whole yard. TIA!