[naremu]

Incidentally I've actually found "natural" solutions like boric acid and diatomaceous earth to be wildly effective (in killing/reducing established populations, not preventing new ones), if a bit unsightly and inconvenient to have lying around in piles to actually force the critters into crawling into them.

I probably ought still spend a day off sealing everything I can, though. Probably more pragmatic and less technically barbaric.

[_huayra_]

I would recommend getting an actual duster (aka "hand bellows"), especially one that has an actual spring to return the bellows instead of just a "plastic spring". I learned it from this video [0].

It really helped to basically make the dust small enough for the roaches to scurry through (instead of avoid like a pile). They don't really want to eat it (like bait), so they need to accidentally walk through it and then clean themselves (and incidentally ingest it).

[0] https://www.youtube.com/watch?v=ubfUacj7zQQ