I mean to let them occasionally spawn and then go kill them all for meat (which I use for kibble) and jelly. Pick a hill outside the base walls. Carve out a big section. Close it off so that when they do spawn a passing caravan doesn’t accidentally get slaughtered. Build some traps and defenses on the approach. Then when an infestation does come it’s in a prepared kill zone.
Since bugs move fast turrets aren’t all that useful. A hallway of traps to kite them down works well. Especially since they will often break off and return to the hive if you flee. Or a narrow hallway leading out of the enclosure with one or more chain gun armed guys aiming not at the bugs, but the end of the gun’s range down the hallway, is incredibly effective.