Diatomaceous earth is not poisonous; it does not have to be eaten in order to be effective. Diatomaceous earth causes insects to dry out and die by absorbing the oils and fats from the cuticle of the insect's exoskeleton.
Pace, plod, trudge refer to a steady and monotonous kind of walking. Pace suggests steady, measured steps as of one completely lost in thought or impelled by some distraction: to pace up and down. Plod implies a slow, heavy, laborious, weary walk: The mailman plods his weary way.
Pacing and Leading can be used in all written and verbal communications. Anytime you want to persuade someone, you should pace and lead them. In most pacing and leading you would use experientially verifiable situations in your pacing statements.