I like to dust powdered boric acid with a $15 day rental duster in attic/and/or crawl space below house. Safe/effective/lasts all year. For pesty tiny ants inside/on top of eating table/etc, I use syringe stuff mentioned earlier post by fellow member. Good advice. This is also boric in a slurry of sugar. Thats it.
Ortho products that are high tech chemistry organics to me are way too toxic and sometimes dont even work. also they can go stale if kept too long. Boric will never go stale......
Outside , if find a carpenter ant nest, for quick action I ssprinkle some sevin dust.......gone in minutes!
Been known to dust my whole yard with it. I have also dusted my carpet with it, let it sit for just a little, and vacuum it.
After this last rain, I think I will do my yard again. Ant beds all over! I usually just put some in a sock and go around shaking it to get a fine dust out of the sock.
The syringe stuff is very good for roaches in the house. Haven't had a problem for years (knockikng on wood).