Dam gnats

[Green Refuge]

I tried all these organic oils in my wife's vegetable garden and they all kinda suck if you have a legit infestation. Only thing that works well is mosquito bites and sand or steel wool like someone mentioned above. If you only have a couple pots the oils should work.

 

[Beehive]

My knats are back. Noticed more then one.

Mosquito dunks will tear them up. With an Azamax chaser. Theyll be knocked down for a week. Then it'll take another spray of Azamax.

They haven't been hurting anything. Annoying, yes. They don't touch the buds. More like hang out around the stem that's an inch thick. Plus, like always. They Love the bottom of the fabric pot. Biggest hang out area they have. Ill get those basturds' too.

 

[Trying4440]

Hey bud. Now I have not tried this myself but you can research it. From what I read you can cover your medium with steel wool and that will fix it. Apparently the adults get shredded when trying to get to the medium to lay eggs and emerging babies get shredded trying to get out. What I read says after 2 weeks the issue is resolved as they cannot reproduce. As I say I am no expert on this and have never had gnats to try it but it might be worth looking into.

Does or will rust from the steelwool harm plants?

 

[Trying4440]

Think im going set up an electric fly trap and zap the flying little fucks

 

[MickeyFins]

I used one yellow sticky trap for adults and one day of watering with a pitcher soaked with a tablespoon of mosquito bits.. Gnats gone in a couple days. I did top dress with sand too.. But I think that was unnecessary.

 

[green_machine_two9er]

Poop to get rid of gnats? Not a good idea. It makes the soil hold more moisture and it’s poop.

Big loss being in your ignore list. I don’t get to hear about Star Wars anymore

It kinda makes me cringe when your refer to ewc as “poop”.

yes quality castings will encourage and contain beneficials. Typically like @PadawanWarrior said, over time with fresh casting, and nourishing soil fungus gnats do seem to go away all on their own.

but there’s lots of ways skin a cat. DE does work as wel. I like to use de in smaller recycled containers in stead of no till- but mixing de with perlite and coco In a ratio of 1 part de. 4 parts coco 4 parts perlite seems to help suspend the de and crest more potential for killing bugs. That mix stays relatively dry on top of soil, about 1/2 inch- 1. The dryness helps the de work more effectively

 

[myke]

Sand,sand and more sand.Then leave a little water in your tray, spray with soap.Theyll drown.

 

[Doug Dawson]

Does or will rust from the steelwool harm plants?

No it won't. Steel wool is a non toxic metal so no harm. It actually has a small benefit of adding some iron to your medium.

 

[Mogro]

I ran into gnats this current run. I put an inch of sand on my soil. They were gone instantly. I left the sand in there for two and a half weeks. Scooped out as much as I could easily. Never seen one again.

 

[Trying4440]

Ya I went with the D.E.worked like a champ thanks everyone for all the help

 

[Smokenpassout]

My never see knats again recipe. Start foilar (spraying with bottle) feeding with a solution of water 2 drops dish soap and some NEEM oil once a week during vegging. Secondly and most importantly cover the top of soil completely with some washed small rocks. If you already have knats and are flowering, don't use pesticides. Try hanging a shitload of flypapers up by lights and get those rocks over the soil to sniff the larvae out.

 

[Wattzzup]

Ya I went with the D.E.worked like a champ thanks everyone for all the help

I also started blowing a fan directly on soil. Dries that shit out quick and no where for them live.

 

[Kingsblend420]

This current grow, i was trying to dial my tent in with a new led before popping any seeds. I had 4 5 gallon fabric pots. Left my light on 100% with no vent or air movement for few hours. Tent was over 100f when i checked on it and the medium was bone dry almost like a powder, or as if it was baked. I wonder if that helped any with avoiding a gnat issue? Just coincidental?

 

[SpawnOfShulgin]

Diatomatous Earth is a live saver. Put a layer a quarter inch thick on the soil, dust the plant (not buds or you'll never get it off) and then wait a few days and rinse it off. You may have to repeat 2 or 3 times.

Usually gnats start because of over watering.

 

[Wattzzup]

Diatomatous Earth is a live saver. Put a layer a quarter inch thick on the soil, dust the plant (not buds or you'll never get it off) and then wait a few days and rinse it off. You may have to repeat 2 or 3 times.

Usually gnats start because of over watering.

I will add poor air circulation also.

 

[SpawnOfShulgin]

I will add poor air circulation also.

Yeah that too. Excellent point. They mate in the air so if airflow is stagnant they can reproduce better. A fan makes it so harder for them to fly so they can't fuck and make as many baby gnats.

The eggs get layed in the soil, and the layer of diatomatous earth kills the hatchlings as they try to crawl up to the surface.

 

[GloryB]

I use diatomaceous earth. works great.

 

[Wattzzup]

I’m blowing one right on the soil. I read it keeps the babies from being able to fly etc. keeps them from mating too? Cool

 

[GloryB]

I use diatomaceous earth. works great.

and put sticky traps down and catch adults.

 

[Green Refuge]

Diatomatous Earth is a live saver. Put a layer a quarter inch thick on the soil, dust the plant (not buds or you'll never get it off) and then wait a few days and rinse it off. You may have to repeat 2 or 3 times.

Usually gnats start because of over watering.

Problem with it is its nasty and messy. That's why I use mosquito bits instead.