When the turf is back in the ground, tamp
down with your foot, and you're done.
Repairing divots is not always a
necessity; with certain types of turfgrasses,
at certain times of the year, repairing the
divot won't make any difference, good or
bad, to the health of the golf course. But
unless you are certain that's the case where
you play, and when you're playing, you
should always repair your divots on the golf
course.