Fungus gnats problems - any solutions?

polymorphism said:

Hey Vincenzio, I can appreciate your frustration. You are right, there is not an immediate threat to your crop from fungus gnats, and it is tempting to ignore them. I always see a big flush of FG about 10 days after I transplant if I do not treat proactively with hypoapsis and nemesis. It doesn't matter how I water. In my humble opinion, you should consider this as a pest that you need to control. If FG are not controlled, other pests have the potential to spread more quickly through your crop. Cheers!

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Right now I have BTi pellets on top, sticky traps on top as well as around the base and walls and just drenched neem again. They just vacated the medium lol.

Watch, by tomorrow Arvo, I'll move the sticky traps, disturb the medium and bloody ten more will fly away. I've never had this issue. If I bottom feed, they just fuck around in the drainage holes instead. .they know their shit.

I can watch them land on the traps, and fly away straight afterwards...every bloody stray piece of medium ends up on them, but not a single gnat...

If you have multiple plants in variable sized containers needing watering at different times, does "letting the soil get really dry" still apply? Do gnats just move on to another pot that was just watered recently and start breeding again? I might need to up my game against them if that's the case. Annoying fuqs they are

Killaki said:

This is something I really want to look into! Thanks for the tip!

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Start a compost pile if you have the room outside. Miles love compost

Christine20 said:

Hey, guys,

Hope everything is well with you
I wated to ask if you guys know any solutions for getting rid of fungus gnats. They are really annoying and they seem not to want leaving the place I mention that I m talking about a pebbles growing technique.
Any magic solution/natural remedies etc?

I would be very grateful for any idea.
Thanks a lot!

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Insecticide blocks.... they are hazardous to your health so I only use them for 2 days max... but they irradiated the problem then I seal bag them e times to use next time I get an issue. I don't go in the tent when they are there

Biological attack w/Mosquito dunks. 1/2 dunk crumbled into a gallon of water. Let set for a few hours then attack.

I did not read all the post but my suggestion would be to Yellow sticky traps apple vinegar traps with a little bit of Dawn dish soap in them

Frank Nitty said:

Didn't work for me!!! I let my soil dry to the point where the leaves are drooping, pot light as a feather, move it and gnats are flying everywhere...

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I tried mosquito bits tea [3 treatments], no luck. Diatomaceous earth, nope. Gnatrol [4 treatments] plus Diatomaceous earth plus sticky traps- bumper crop of gnats. Finally covered the top soil with a layer of pumice stone screened at 1/8, bingo! This morning I had 1 gnat on all my sticky traps. The Pumice stone is porous so you can water it and it soaks right in. My major mistake was introducing bagged soil into my tent, never again!

MickFoster said:

Contrary to what one of the above posters posted...........yellow stickies for the adult flyers and 3 drenches with Gnatrol for the larvae works every time.

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How do you space out the drenches and would the bottom feeding method that someone else suggested be best to keep the top as dry as possible…I have rooted clone I’m really trying to turn into a mother plant, but it is really trying to die on me…there was a nute mishap day 1…now it’s just starting to really come back and I check on it and it’s gnatty as hell…can’t catch a break