Repel Insects

When this spell is cast the druid creates an invisible barrier to all sorts of insects, and normal sorts will not approach within 10-ft 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.