My admirer and I reside on the 9th attic of a top rise. Last anniversary as the acclimate started abating up, I noticed hoards of these little flies acquisition on our window screens. They're beyond than bake-apple flies, but attending just like them. They're annoying. I can flick the screens so they go abroad but they appear aback immediately. They've been advancing in through any tiny gap they can, so I sprayed the crevices of the windows with a bulb pyrethrin spray. Not working.

Our abode is clean. There's no rotten odors in actuality that would be alluring them. But we get lots of ablaze and it's too balmy to abutting the windows.

What can I do to avert these bugs? Day or night, ablaze or not, they don't go away!

I reside in southeast and am traveling to buy the berry for the lawn. Any suggestions or admonition with clay preparations?