This boss can only harm your Pikmin by dragging them into its den when they are holding an item, so there is no need for spray usage. Watch out for electricity though, and sometimes the eggs have Mitites in them. If a treasure is dragged into a breadbugs den, killing the breadbug will get it back.
Stats:
Pikmin Used: Yellow, Purple, Red
Sprays Used: 0
Pikmin Lost: 0
Captain Damaged?: No