I know this is a bit off of a chicken topic, but I needed some help and all of you are so knowledgeable about things, so I thought I'd give it a shot. We have an extraordinary hornet problem in the eaves and under the roof of our house. I have been killing at least 2 bees a day in the house, so I don't think there is a big nest with access to the house yet, but the activity outside of the house is unreal. I feel like I can't even open windows without them getting in through small cracks. (Older house we bought in '06.) We didn't seem to have this problem last year. Short of calling in the exterminator which would cost $250, what can we do to take care of them? I have a toddler and I am afraid of what will happen if he finds more than one outside or in the house. We did spray the nest and activity area, but wondered if there was a commercial dust or spray that would leave a residue like the exterminators use. Sorry this is so long. Any advice would be appreciated!