How can I deal with the noxious bulbs?
Solution 1:
Either teleport them away or hit them with their own elemental damage type
You can use either teleport or a character with high telekinesis to displace them and put them somewhere where they are out of the way, or you can disable them: Deal damage directly to them of their corresponding type and they will become disabled, until they are damaged directly by a different elemental damage type.
E.g. for green Bulbs, a poison dart targeted directly at them will disable them, though it will not deplete their health