Welcome to the Growery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!
Sticky traps for the adults, drench the medium with gnatrol to kill the larvae. May take several applications.
Sometimes they can nest in the sink drain too, best to bleach it if in doubt.
You need to wage holy war, nothing is acceptable but the complete and utter annihilation of every single fungus gnat in your home. Otherwise they will keep showing up.
The more plants that you have in your house, the more it becomes impossible.
I have tons of house plants all over my whole house, so fungus gnats have become a part of my life permanently.
There is absolutely no way to get rid of them at all until all my plants go outside for the spring, and then the cycle repeats every fall when I bring them all back inside.
The only thing that I can do is manage them, so that they don't totally get out of hand, but eradicate them 100%, just forget about it. It can not be done
Ok I read 1:4 hydrogen peroxide kills eggs. And yes there are much less around lately. So repeated applications will get rid of em for good j just don’t want any malathion near my plants or I’d sprinkle seven on the soil. 1:4 not strong enough I suggest 1qt container per half gallon. Cause it didn’t really work till I poured some full strength 3% on there.
Hm, kinda late here but in personal experience, this combination works:
- Sticky traps for flying adults - Mosquito Dunks for larvae - ~½" - ¾" layer of sand on top of soil to prevent adults that fly out from getting back down into the soil to lay eggs. Once they're gone, scoop as much sand out as possible to prevent suffocation of roots.
Speculation here, but I'd be careful with using a lot of H2O2; i'd worry how stressful it is on the roots as well as how much microbio it's killing off, which may or may not come into play later down the road
Quote: resincoatedlungs said: Hm, kinda late here but in personal experience, this combination works:
- Sticky traps for flying adults - Mosquito Dunks for larvae - ~½" - ¾" layer of sand on top of soil to prevent adults that fly out from getting back down into the soil to lay eggs. Once they're gone, scoop as much sand out as possible to prevent suffocation of roots.
I used the sticky trap & dunk method. Put the traps in each pot, put the dunk in my compost tea bubbler. It cut the number of gnats sharply at the end of my first grow, and I have not seen another gnat since then (1.5 years).
I have not used sand, though I did purchase a bag of diatomaceous earth that is now just sitting around.
Currently starting a bunch of outdoor plants in the tent, though, so things may change.