some food plot chemicals are for burn down aka killing all growing vegitation
some chemical are premerge, aka to stop weeds/grasses from sprouting or emerging
the number 1 rule is to "start clean and try to stay clean"
mistakes can be costly and many times the application has to be redone
"Don't piss down my back and tell me its rain", Fletcher, Outlaw Josey Wales
Living somewhere between this world and the other, Legends of the Fall