Fungus gnats, the flying ones are not doing anything but mate and lay eggs. Larva lives in a top 1/2 inch of soil and feeds on organic material in soil. Spraying off the adults is a temporary measure = the new ones will hatch soon.

Usually means that the soil is on a wet side. Since they are already here - nuking the new soil won't help because they will just reinfest it.

Keeping the plants - all plants in your house - not only AVs - on a dry side - will reduce their amount - as well as scraping the top of the soil off and replacing it with a fresh one.

There is a organic way to control them them - Gnatrol - it is a drench you water with - it has bacteria that kills the larva, But you need to do the watering several times week apart.

Total eradication will involve pesticides - but comes summer they will come back through the doors and windows - since they are small enough to get through the screens. Adding a small amount of a systemic granular imidacloprid to the top of the soil helps, you just need to sprinkle it and work it in and repeat the procedure every 3 months.

i.

thanks Irina. learned a lot about gnats and how to get rid them. Pembroke