Natural insects don't bother me much. I do worry about repelling the un-natural kind sometimes.

I found that in our area dirt dauber wasps are great spider predators; they paralyze them and stuff them in their nests for the little ones to live off after they hatch. Wonderful to think about if you are the sort who wishes revenge on the spider population.
But all in all I'd rather have the spiders than the wasps.

-Glenn