Read If You Have Gnats.........in Dirt

I See A Lot Of People Having Gnat Problems With Dirt, Here Is A Simple Solution. Go Buy A 2 Gallon Spray Bottle With A Mist Head Then Add Your Nuts Then Put In A Mosquito Dunk In There Too. And Water For About 2 Weeks Your Gnats Will Go Away.
Mosquito Dunk Eats The Larve....
And Its Easy To Mix Your Nuts And Those Spray Jugs.

Are you suggesting spraying your plants with insecticides? Isn't that bad for your health when you ingest/smoke the final product?

No, I'm Saying That You Water Your Dirt Using The Spary But Keep The Dunk In The 2 Gallon Spray Jug To Kill The Larve In The Dirt, Mosquito Dunks Are Safe To Plants, If You Do This For 2 Weeks You Should Have No Gnats And You Can Keep Watering Your Plants With The Spray If You Get The Head With A Mister. It Easy To Water Your Plants With Them.

flurry822 said:

I See A Lot Of People Having Gnat Problems With Dirt, Here Is A Simple Solution. Go Buy A 2 Gallon Spray Bottle With A Mist Head Then Add Your Nuts . . .

Click to expand...

What on earth is mosquito dunk . . . regardless, ain't adding MY nuts!

But seriously, raw potato slices placed on top of your soil will draw the gnat larva . . . lift the slice, see the yuck, toss that slice, replace w/fresh slice . . . when slice(s) come up clean, your infestation should be over. Maybe leave clean slice an extra day or 2 to be certain?
Works like a charm.

or you can just let the soil completely dry in between waterings!