Getting rid of fungus gnats during flower

  • Thread starter AnOldColdSoul13
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AnOldColdSoul13

AnOldColdSoul13

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Okay so a few weeks ago my girlfriend's flowers or whatever was inside the house and i noticed a little bug with wings come to the surface when i watered her plant. I looked it up and its a fungus gnat. I removed her plants from the house immediately. I also had a water leak issue with my washing machine discharge hose, which will cause them to stay in that area as well. I got all the causes fixed. But earlier when i was feeding, it seemed like i caught something in the corner of my eye fly by me, but it was small. Assuming the obvious, i dug my finger about 1/2 inch deep into the coco in each pot (i have 3), and in one of the finger holes i saw a super tiny White larvae thing. Im assuming thats fungus gnat larvae..
Ill say this before it even gets brought up. Im definitely not over watering. Im watering once to twice a day in coco (normally once a day), i have decent amount of perlite for drainage, fabric pots, and they are elevated. Runoff also gets drained so that i avoid problems with standing water, such as gnats...
How do i get rid of these bastards? I could put sand or dry coco on top of the medium, but i feel like theyre gonna eat my roots either way if i dont get them out of there with a pesticide of some sort. Im like 3 full weeks into flower with autos. Any suggestions? Thank you
 
AnOldColdSoul13

AnOldColdSoul13

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Spray hydrogen peroxide onto the top of soil every other day for a few weeks. Sticky yellow fly traps might get the adults.
I just sprayed the coco down with peroxide. It was a bottle that was running low, so i have to get some more. The idea is to wet the top of the medium but not soak the whole thing right?
 
AnOldColdSoul13

AnOldColdSoul13

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That won't kill them all, local ace hardware or home depot has mosquito dunks. It's just bacteria, safe for flower. Don't spray peroxide on the mosquito dunks.
Hell yeah. I have an ace down the road. I normally have to order EVERYTHING cause i live in the south in a small town lol. I'll drop by there tomorrow and see if they have any in stock
 
AnOldColdSoul13

AnOldColdSoul13

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Have you tried letting the dirt dry out till a little droopy a few times?
I havent let it dry out completely because im growing in coco, but i definitely dont water as much as some coco growers. I have a 10" fan circulating air over the canopy to keep temps down and for a few days now ive had a couple of PC fans blowing thru the lower levels of the plant, by the coco and the stalk
 
One drop

One drop

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I havent let it dry out completely because im growing in coco, but i definitely dont water as much as some coco growers. I have a 10" fan circulating air over the canopy to keep temps down and for a few days now ive had a couple of PC fans blowing thru the lower levels of the plant, by the coco and the stalk
Just kicked my gnats in the nuts
 
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