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 tvbfe
Registered: 02/16/17
Posts: 97
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Last seen: 7 years, 8 months
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 FUNGUS GNATS 
#823792 - 02/16/17 10:01 AM (7 years, 10 months ago) |
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Hello I am new to this forum stuff and thought i can get some thoughts on how you guys deal with these dang gnats.I am growing in hydroton with constant drip.I've been told H2O2,calcium,mosquito dunks and other various high dollar killers. Not sure what to use. Please help!
Edited by tvbfe (02/16/17 10:15 AM)
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 Magash
The Feminizer
Registered: 04/21/08
Posts: 6,634
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 Re: FUNGUS GNATS [Re: tvbfe]
#823793 - 02/16/17 10:41 AM (7 years, 10 months ago) |
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If the plants are in veg you can just use a garden bug bomb.
There made for use in gardens and around fruits and vegetables.
The poison in them is made of chrysanthemum flowers. The poison is called pyrethrum.
https://www.discount-hydro.com/doktor-doom-total-release-fogger-3-oz/
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All creatures tremble when faced with violence. All creatures fear death, all love life. If we can only see ourselves in others, then how could we possibly hurt another creature?
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Theman
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Re: FUNGUS GNATS [Re: Magash] 1
#823799 - 02/16/17 11:32 AM (7 years, 10 months ago) |
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Made a post not to long ago.. have a look.household Peroxide will work. Sticky traps for adults. And mosquito dunks do work aswell they just have to eat it.
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tvbfe
Registered: 02/16/17
Posts: 97
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Last seen: 7 years, 8 months
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Re: FUNGUS GNATS [Re: Magash]
#823800 - 02/16/17 12:54 PM (7 years, 10 months ago) |
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Thank you I have used that in the past and it worked good but unfortunately I am 16 days into 12/12. I should have mentioned that.
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tvbfe
Registered: 02/16/17
Posts: 97
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Re: FUNGUS GNATS [Re: tvbfe]
#823801 - 02/16/17 02:27 PM (7 years, 10 months ago) |
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Cool, thanks man. Nice and affordable.Ill give the sticky traps and h2o2 a shot
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Deadkndys420
Registered: 08/28/12
Posts: 8,703
Loc: █████
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Re: FUNGUS GNATS [Re: tvbfe]
#823802 - 02/16/17 02:28 PM (7 years, 10 months ago) |
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Where are the gnats eggs coming from if your doing hydro?
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tvbfe
Registered: 02/16/17
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not sure snuck in from a house plant maybe
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Theman
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Re: FUNGUS GNATS [Re: tvbfe]
#823840 - 02/17/17 11:31 AM (7 years, 10 months ago) |
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Live in the hydrotron clay balls or rockwool and eat roots and part of the stem..
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Theman
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Re: FUNGUS GNATS [Re: Theman]
#823841 - 02/17/17 11:33 AM (7 years, 10 months ago) |
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Make sure peroxide is gone before using dunks as the peroxide will kill the bacteria that makes them work. Cheers
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Deadkndys420
Registered: 08/28/12
Posts: 8,703
Loc: █████
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Re: FUNGUS GNATS [Re: Theman]
#823844 - 02/17/17 02:36 PM (7 years, 10 months ago) |
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Quote:
Theman said:
Live in the hydrotron clay balls or rockwool and eat roots and part of the stem..
That is not logical at all. As there is no food source in either.
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Data
That Guy
Registered: 08/12/08
Posts: 4,042
Loc: Southwestern US
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Fungus gnat larvae primarily eat Fungus in soil, but in the absence of fungal food sources will nibble on the ends and small hairs of young roots. This is the practical reason why fungus gnats should not be allowed to multiply without restraint, as they can stunt the plants' growth.
Additionally, hydroton with regular nutrient feed can support small amounts of fungus...and the pores in the clay provide the perfect moist environment for the adult gnats to lay their eggs.
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“The Universe is under no obligation to make sense to you” -NDT
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Deadkndys420
Registered: 08/28/12
Posts: 8,703
Loc: █████
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Re: FUNGUS GNATS [Re: Data]
#823847 - 02/17/17 03:08 PM (7 years, 10 months ago) |
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I just don't see gnats hiding in hydroton or rockwool as they would just die. It's not like the gnats know this will eventually be used with plants. Also all the hydroton and rockwool I buy and use are sealed in plastic. Just doesn't seem that feasible.
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phychotron
Medicated
Registered: 02/17/11
Posts: 1,995
Loc: Earth (mostly)
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But it is feasible to get an infection after you start using your sterile medium 
I made the mistake of getting a bag of potting soil for other plants. Before I even had cannabis plants around I noticed some black flying insects around... sure enough now that I'm here with pure coco I've noticed thrips on an un-rooted clone. It might have also been the cat that brought an infection inside, but its to coincidental that I got them around the time I got the soil.
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Any help given is for educational purposes only. Its your responsibility not to break any applicable laws
 Bamboo Bongs I make | Perfect Dry and Cure | Grapegod under LED
“Human beings, vegetables, or cosmic dust, we all dance to a mysterious tune intoned in the distance by an invisible player.” ~ Albert Einstein
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Data
That Guy
Registered: 08/12/08
Posts: 4,042
Loc: Southwestern US
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Re: FUNGUS GNATS [Re: tvbfe]
#823853 - 02/17/17 04:41 PM (7 years, 10 months ago) |
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Quote:
Deadkndys420 said:
I just don't see gnats hiding in hydroton or rockwool as they would just die. It's not like the gnats know this will eventually be used with plants. Also all the hydroton and rockwool I buy and use are sealed in plastic. Just doesn't seem that feasible.
Oooh ok I see what you're saying now. Yea Psychotron covered it pretty well. The gnat eggs were not in the media to begin with, but like tvbfe said
Quote:
tvbfe said:
not sure snuck in from a house plant maybe
The adult gnats are drawn to moisture and biological metabolites. They were probably attracted to the older hydroton in the grow after leaving the soil of the houseplant. You can actually utilize this to build a trap with apple cider vinegar, since the smell of rotten fruit seems to attract them like crazy.
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“The Universe is under no obligation to make sense to you” -NDT
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tvbfe
Registered: 02/16/17
Posts: 97
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Re: FUNGUS GNATS [Re: Data]
#823862 - 02/17/17 06:50 PM (7 years, 10 months ago) |
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I am making traps for the adults but decided to order in some nematodes like suggested to kill larva ect. They are not only living in the hydro but if it was nt for my constant attacks on them with the shop vac and three times daily stirring up the top couple inches of clay balls and traps they would be thriving. Momma said thered be days like these. lol
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tvbfe
Registered: 02/16/17
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Re: FUNGUS GNATS [Re: tvbfe]
#823870 - 02/18/17 07:27 AM (7 years, 10 months ago) |
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Thank you everyone for the conversation. Appreciate all the thoughts.
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Theman
Stranger
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Quote:
Deadkndys420 said:
Quote:
Theman said:
Live in the hydrotron clay balls or rockwool and eat roots and part of the stem..
That is not logical at all. As there is no food source in either.
Lol what? Like i said eat roots.. roots die then eat more roots even will eat stem.
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Theman
Stranger
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Re: FUNGUS GNATS [Re: Theman]
#823880 - 02/18/17 05:57 PM (7 years, 10 months ago) |
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The eggs are layed once u have plants growing and medium is moist.. not just living in a bag of dry rockwool.
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MaryGBlaze
PurpSkurp
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Re: FUNGUS GNATS [Re: phychotron]
#823883 - 02/18/17 07:12 PM (7 years, 10 months ago) |
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I've had fungus gnats munching on my cube trays before . They were covered with wax paper . They're hard to get rid of . Had to switch to a closed tub
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tvbfe
Registered: 02/16/17
Posts: 97
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Last seen: 7 years, 8 months
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Re: FUNGUS GNATS [Re: MaryGBlaze]
#823900 - 02/19/17 08:13 AM (7 years, 10 months ago) |
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Layed awake last night thinking of how to in-close my system.Wondering if I could cover the tops of buckets with shrink wrap or would that cause more problems for the plants like stem rot?Also thought maybe some of that coco mat.
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phychotron
Medicated
Registered: 02/17/11
Posts: 1,995
Loc: Earth (mostly)
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Re: FUNGUS GNATS [Re: tvbfe]
#823902 - 02/19/17 10:41 AM (7 years, 10 months ago) |
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people use sand to cover the tops of pots to slow the bugs down. But there are covers you can build to keep the soil protected. I want to build some sort of splashguard type thing for the tops of my pots. Every time you water you splash tiny amounts of hydroponic nutrient salts into the air which land on the buds.
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Any help given is for educational purposes only. Its your responsibility not to break any applicable laws
Bamboo Bongs I make | Perfect Dry and Cure | Grapegod under LED
“Human beings, vegetables, or cosmic dust, we all dance to a mysterious tune intoned in the distance by an invisible player.” ~ Albert Einstein
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tvbfe
Registered: 02/16/17
Posts: 97
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Last seen: 7 years, 8 months
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Re: FUNGUS GNATS [Re: phychotron]
#823919 - 02/19/17 04:58 PM (7 years, 10 months ago) |
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Never thought of that with the nute splash. Can you use a drip system? That would cut out any splash back. I've decided to use a silkscreen to cover my buckets. That should keep those little root eaters out and still allow the air to get through.
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phychotron
Medicated
Registered: 02/17/11
Posts: 1,995
Loc: Earth (mostly)
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Re: FUNGUS GNATS [Re: tvbfe]
#823923 - 02/19/17 05:46 PM (7 years, 10 months ago) |
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Once you dry out nutrients they can become airborne as soon as they get disturbed. Like right when the water kicks on. Think about all the dried crusty nutrients you have on things, at the bottom of flood trays, etc.
I'd heard of some people who created a physical barrier between the medium and plants for that reason(even heard of a guy who grew with well-composted human feces that did that) but it was this photo this really did it for me. Something I've wanted to implement but never found the motivation for doing it.
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Any help given is for educational purposes only. Its your responsibility not to break any applicable laws
Bamboo Bongs I make | Perfect Dry and Cure | Grapegod under LED
“Human beings, vegetables, or cosmic dust, we all dance to a mysterious tune intoned in the distance by an invisible player.” ~ Albert Einstein
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tvbfe
Registered: 02/16/17
Posts: 97
Loc:
Last seen: 7 years, 8 months
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Re: FUNGUS GNATS [Re: phychotron]
#823993 - 02/22/17 10:07 AM (7 years, 10 months ago) |
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Wow yep I can now see how that can dry and get dispersed into the air and then onto smoke.Thinking I've got some coco mat that would go over the drip halos and that should do the trick.Thanks for the info.
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tvbfe
Registered: 02/16/17
Posts: 97
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Last seen: 7 years, 8 months
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Re: FUNGUS GNATS [Re: tvbfe]
#824010 - 02/22/17 04:59 PM (7 years, 10 months ago) |
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Applied nematodes-sf today. Traps have got the adult population down considerably. Looks like I might be on the down hill side of this.
Edited by tvbfe (02/22/17 05:17 PM)
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Tetracan420
Baby Bloomer
Registered: 02/25/17
Posts: 91
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Re: FUNGUS GNATS [Re: tvbfe]
#824226 - 02/28/17 01:17 PM (7 years, 10 months ago) |
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Never used nematodes yet but have heard great things about them. Some people add them to the growmedium as a preventative also. Sorry to hear about the Gnats..hope you find a cure best of luck
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tvbfe
Registered: 02/16/17
Posts: 97
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Last seen: 7 years, 8 months
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Between sticky traps, dunks set out in small containers with hydroton and nematodes their population is down.
Thank for the well wishes tetracan420
Edited by tvbfe (02/28/17 06:50 PM)
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Theman
Stranger
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Re: FUNGUS GNATS [Re: tvbfe]
#824307 - 03/01/17 09:13 PM (7 years, 10 months ago) |
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They can still live in hydroton can infect hydro using clay pebbles. Sand works becuase it drys out. Hydroton stays moist so not what u want. Cheers!
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tvbfe
Registered: 02/16/17
Posts: 97
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Last seen: 7 years, 8 months
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Re: FUNGUS GNATS [Re: Theman]
#824494 - 03/07/17 05:59 PM (7 years, 10 months ago) |
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Cheers
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Mof
Registered: 07/02/08
Posts: 704
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Re: FUNGUS GNATS [Re: tvbfe]
#824694 - 03/13/17 11:03 PM (7 years, 10 months ago) |
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do these things eat bud?
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Data
That Guy
Registered: 08/12/08
Posts: 4,042
Loc: Southwestern US
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Re: FUNGUS GNATS [Re: Mof]
#824697 - 03/14/17 01:55 AM (7 years, 10 months ago) |
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Quote:
Data said:
Fungus gnat larvae primarily eat Fungus in soil, but in the absence of fungal food sources will nibble on the ends and small hairs of young roots. This is the practical reason why fungus gnats should not be allowed to multiply without restraint, as they can stunt the plants' growth.
Additionally, hydroton with regular nutrient feed can support small amounts of fungus...and the pores in the clay provide the perfect moist environment for the adult gnats to lay their eggs.
So no and yes. No, they don't directly eat cannabis flowers. But yes, they can resort to eating portions of the root system.
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“The Universe is under no obligation to make sense to you” -NDT
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Plague_Wraith
Horseman
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 Re: FUNGUS GNATS [Re: tvbfe]
#825594 - 04/26/17 02:02 PM (7 years, 8 months ago) |
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How did this turn out? Were you able to completely wipe them out?
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Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured. - Mark Twain
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tvbfe
Registered: 02/16/17
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Last seen: 7 years, 8 months
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No. They are under control but not completely gone.
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Plague_Wraith
Horseman
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Re: FUNGUS GNATS [Re: tvbfe]
#825620 - 04/28/17 10:47 AM (7 years, 8 months ago) |
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What do you think you'll try next on them?
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Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured. - Mark Twain
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Mof
Registered: 07/02/08
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keeping the area free of puddles and disposing of the rotted leafs worked for me
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tvbfe
Registered: 02/16/17
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I don't know. I am running constant drip in clay balls so there is always water but no standing water. For the time being I am just covering the buckets with sticky traps. Not many left.
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Theman
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Re: FUNGUS GNATS [Re: tvbfe]
#825717 - 05/03/17 04:51 AM (7 years, 8 months ago) |
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Can crumble some dunks on there too will hit the larva. Or some decent steong pwroxide sprayed on the top will zap those mofos
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Plague_Wraith
Horseman
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Re: FUNGUS GNATS [Re: Theman]
#825744 - 05/04/17 04:27 PM (7 years, 8 months ago) |
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I've had absolutely no luck using hydrogen peroxide. I've read over and over that it's totally safe and won't screw with plants, but just the regular 2-3% stuff from the grocery store (even diluted - 1:5 or 1:10 ratio) has left noticeable damage on my DWC and Kratky experiments and never seems to help with mites or fungus gnats.
I'm not saying it isn't a good idea or that it won't work, just that it hasn't worked at all for me in regard to bugs. It works fine on algae growth, root rot, and stem rot though.
I've actually had better luck just rinsing my plants off with significant water flow than using peroxide, but I have yet to find a permanent solution.
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Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured. - Mark Twain
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