Fugus gnat larvae, best products for them HELP

I know I already made a thread about my fungus gnat problem but I didn't get enough responses and I want to settle this once in for all growers with this problem. WHAT ARE THE BEST PRODUCTS ON THE MARKET TO GET RID OF FUNGUS GNAT LARVAE(IN THE SOIL EATING THE ROOTS).

I know cinnamon oil kills fungus that larvae eat and they will eventually die off, is this true? I tried powdered cinnamon alone and it didn't do the trick. but haven't tried oil.

Gnatrol- contains (BT) bacillus thuringiensis which contains microbacteria that kill gnat larvae, Have you used it? how effective was it? can you water it into the soil.

also, I used a product called thuricide that has (BT) by southern ag, and the gnats seemed to love it. stay clear of this stuff it doen't work for gnat larvae.

NEEM OIL- is supposed to effect the way many bugs reproduce and eventually kills them off. I recently seen a 1gallon bottle of Dyna gro neem oil that costed 75.00 anybody know if this stuff is even that great? is says to foliar feed, so I assume its only for leaves and doesn't kill larvae. does it kill all signs of the gnats and larvae?

Diatomaceous Earth- made of fossilized shells, it is all natural organic and scratches all crawling bugs skin and makes them lose their body fluids so that they eventually die from dehydration. Did this stuff work for you? how good? any signs of gnat larvae after use?

Hot shot no pest strip- it releases an odorless vapor that is supposed to eliminate all bugs within a certain area. I have one hanging in my growroom right now, it seems to work good for spider mites because I haven't seen any lately and I also havent seen many adult gnats, but when I Move my soil around, a whole pool of the little gnats crawl out and start jumping around so it doesn't get undersoil larvae.

Sand-I recently got a bag of paving sand and filtered out all the larger rocks in it. so it can be impossible for the gnats to come up. It seemed to work great, but I took a much closer look and I can see little gnats crawling around. The sand hasn't worked for me, they could be getting out from the holes on the bottom of my pot though. i will tape the holes in a bit.

sticky fly traps- I got some of these and hung them in my grow room, its been a week and all it has caught was a fly, a spider, and 1 fungus gnat. I then put some in my soil and it has caught many larvae, but there are hundreds in my soil.

Dish soap- I used more than 3 table spoons of palmolive dish soap in 1 gallon of water and watered it into my soil. It did not work one bit and the larvae are thriving. they love palmolive dish soap

potato slices - I haven't tried this yet, but I've heard good and not so good results from this, did it work for you? how good? i'm sure it couldn't of got all of the bastards dwelling in the soil did it?

pyrethrum- I used fox farms don't bug me, which has pyrethrum, I spayed it on my gnat infestation on my last grow and although it killed flying gnats, it seemed like every day there were new flying gnats to take their place. anybody have success with other pryethrum products? one that you can SOAK your soil with? how much? BTW I also lost my last KC MANGO CLONE from my last grow due to the gnat larvae because they had caused it to stop growing. and supposedly stable females of that strain are hard too come by, FUCKIN GNATS. at least her mama yielded really nice smoke
nematodes-a simple cheap method to get rid of gnats, a bug that hunts and kills gnat larvae, can these little guys get into the soil and take care of these assholes underground? as well as up top.

ed rosenthals zero tolerance- a fellow GCer recommended this to me and it contains cinnamon oil and other fungus and bug killing organic ingredients. I've also heard that it helps a lil bit, but doesn't kill all the gnats thoroughly and burns leaves a little bit, anybody use it with 100% gnat larvae death?

OK BLADES, so those are some of the methods I used and my experience with them so far, and info on more products that I would like to know more about. how did these products work for you? can you suggest something that worked 100% for you with infestation of fungus gnat larvae, and a product that you can soak your soil with thats not harmful to your garden That fully kills the gnats larvae?

all help is much appreciated, and i'm sure this thread will be usefull to all growers, seasoned, ,moderate and new growers alike, if people contribute, thanks

[skh812]

Really sweet post man... This definitely helps lay out the options. I am about 1 week since my 2 babies sprouted and have had gnat problems the whole time. 3 days ago I put a large potato slice into each cup, and the gnats have been gone. I don't know whether this will be a permanent fix, but I can say its worked well for me. I actually started with 4, all of which broke the ground, but 2 died very quickly, and I suspect the larvae may have had at them. I hope the 2 I have left can both recover. Will let you know if the potato slices get rid of them for good.