Best Answer - Posted by
Shreder
"Fabolous tent amigo.
I deal with gnats 365 days a year
Preventive measures are good.
But now you could apply water/hydrogen peroxide i think 1:4 so 100ml h2o2 for each 400ml water...
Soil will fuzz for a minute, but this supposed to kill larvae and is supposedly harmless to plants. I did that on my vegies and no harm was done. Didnt try on weed.
There i put a bunch of sticky traps. Stick the drippers all the way down to minimize coco moistire on top.. then RAID before flower, maybe once or twice after stretch is done, quick blast to bottom of pots, below the flood table, outside the tent. This is to break the breeding cycle.
Put perlite on top of coco to prevent larvae from digging in and eating your roots though u need to have a real bad infestation for this to hapen.
Replace your sticky traps weekly, use alot of them on soil level and around the pots,
Use neem oil and spynosad products on a bi weekly basis..
If u keep gnats population small, ull be fine.
You could also use biological pesticide.
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