So 2 things...1st ive already used all 3 things in the war lol, but it does beg the question of the microbes.
2nd, if i understand gnats, the larvae are what does all the damage to the roots. So even if the stickies catch the adults the damage has been done, and if the adults get any time to crawl around on the soil theyre laying their eggs in the soil.
Im thinking ya gotta break that cycle under the soil. Ive done the peroxide watering both top and bottom. Ill let that completely dry up and do another peroxide watering. In between im using the spray and stickies.
The plant is perking up but i can only imagine what was being done to the roots. This was a pretty bad infestation.