Each year as it gets nicer outside, I begin to find flies congregating in the sun on the side of the house just outside our patio door. It tends to be a nice sunny place for them. I do not have a grill and I have potted herbs that are supposed to be things they don't like based on other websites. It's not unusual for small fuzzy bumble bees to also hang out in the same place, so I'm reluctant to spray it since I need the bees to pollinate my vegetable garden and flowers.
Any ideas would be appreciated.