Bugs don't like Geraniums

I feel instantly happy having completed the planting of 24 geraniums.  I love the big showy flowers and the fact they bloom all summer long, even here in North Texas garden zone 7b.  Our summer temps are extreme - mid 80’s -107°. Geraniums stand up to our hot drought season, like full sun but thrive in pots on my shaded patio, and the another big reason is that they deter insects.  Spiders, flies, mosquitos don’t like them.  Come to think of it, the squirrels don’t bother them either!