Could we unintetnionally select for faster and more evasive fruit flies in the populations in our homes because we are always swatting at them. I hear they have a lot of genetic variation, and they lay eggs frequently.
I remember them being a pain to swat last summer. it was so difficult that we made a trap instead. Now, spring is back and the new wave is unimpressive. I could squash a few every few seconds when they were concentrated on the cieling above the kitchen light. I can put my thumb on them, and they don’t even flinch. I spent more time whiping up the fly guts.
By the way, if there is a way to keep them out without killing them, I would appreciate your informativeness.