When this spell is cast the druid creates an invisible barrier to all sorts of insects, and normal sorts will not approach within 10’ of the druid while the spell is in effect, although any giant insects with 2 or more hit dice will do so if they make a saving throw versus magic, and even those which do so will sustain 1-6 hit points of damage from the passing of the magical barrier. Note that the spell does not in any way affect arachnids, myriapods, and similar creatures — it affects only true insects. The material components of the repel insects spell are mistletoe and one of the following: several crushed marigold flowers, a whole crushed leek, 7 crushed stinging nettle leaves or a small lump of resin from a camphor tree.