Bugs are nasty this year.

I was changing the hydraulic fluid in my mower outside on the cement pad in front of the shop. I put a pan under and started draining the fluid the flies were diving into the used oil so fast that there was more flies than oil
That's kinda odd, I think I will try that.
We are at that time of year when the spotted wing flies start looking for a place to hibernate and got a butt load in my motor home, fly stickies don't seem to help so will try the hyd. oil idea.