fruit flies?

[robbiedublu]

Read the label, clearly states fruit flies AND fungus gnats. The dead fuckers in my veg room don't lie...

Sorry evlme2, I didn't mean to sound so snotty. Unfortunatly I consider myself an expert on fungus gnats. I don't care what the label says. Pyrethrin will not eliminate fungus gnats. I've tried lots of things that claimed they killed them, only they mostly have little effect.
Check the following chart I copied from the Texas Agricultural Service /Texas AM University

Potting media treatments (for larvae):
....... Biological control:
- Parasitic nematodes (Exhibit®, BioSys®, Guardian nematodes, Scanmask, Ecomask, etc.*,**) and others (S. feltiae, Heterorhabditis spp.)
- Predatory mites (Hypoaspis spp.)(1 to 50 per container)

Microbial insecticides:
- Bacillus thuringiensis var. israelensis (Gnatrol®*,**)

Insect growth regulators:
- azadirachtin (Azatin® EC*,**)
- fenoxycarb (Precision®*)
- kinoprene (Enstar®*,**)

Nerve-active insecticides
- chlorpyrifos (DuraGuard*,**)(surface spray)
- diazinon (PT® 265 KnoxOut® 2FM*,**)(surface spray)
- oxamyl (Oxamyl 10G*,**)

Foliar treatments (for adults):
chlorpyrifos (PT® 1325 ME Duraguard*,**)
cyfluthrin (Decathlon®)
diazonon (PT-265® KnoxOut® 2FM*,**)
horticultural oil (SunSpray®*)
oxamyl (Vydate®*) - no longer being produced for ornamental market
pyrethrins (Pyrenone® Crop Spray)
resmethrin (Resmethrin EC*,**)

Fogs and fumigants (for adults):
diazinon (PT-1500R® KnoxOut®*,**)
nicotine (Nicotine Smoke Generator*)
resmethrin (Resmethrin EC 26*,**)

*approved for greenhouse use; ** approved for interiorscape use

A lot of that shit I wouldn't want to use at all on pot that i'm gonna smoke. You can see from the chart that pyrethrins kill adults only. Unfortunately it doesn't kill the larvae under the soil. I've had the most success with predator mites and parasitic nematodes. Gnatrol would be my 3rd choice.
Good luck wade county! Evlme2, your gnats will be back unless you use something that kills the larva.

 

[Wade County]

ive been reading some articles and it said that the best way to kill the larvae is to let the soil dry out because they cant live in dry soil...however, i need some method to fix this problem because i checked the room this morning and saw a few gnats flying around (not as many dead ones as the previous day but still enough to make me concerned)