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Is this a fungus gnat?

BoB91

Active member
I find at least one or two a day in my house. Rarely are they nearby my one plant. I check it quite often.








 

growmatic

Member
It kind of looks like one but it's hard to tell from your photo. How long is the body? Fungus Gnats are about 1/10th-1/8th of an inch long--they have a vein pattern in the wings. You might want to lay out some sticky fly paper to see if you can capture one... The best way to take care of 'em is preventative care...
 

BoB91

Active member
thank you

thank you

Thank you. I shall do that before next run. However, I believe I had them before I even started growing. I think!? Oh well we will see.
 
G

Guest

^ like he said , get a hold of em now. Get some neem oil and dillute it in the spray bottle. either way , its really no biggie. Those nats seem to be around at one time or another ,just as long as its not more than 10 or so dont sweat it. :wave: good luck there is tons flying outside where i live so whatever.
 
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TML16

Snow Grower ~OGA~
Veteran
I had a fungus gnat problem not too long ago.

It's hard to tell by your pic whether or not that is one...but very similar characteristics.

Sticky paper is needed to catch the adult population. If they have already laid eggs, a thin layer of diamacious earth (hard to find for me anyways) or sand will work at burying the larvae so no more hatch.
Letting your soil dry for a few extra days also helps. Fungus gnats feed of the organic materials on the top of your soil, and the larvae actually suck on the surface roots...so they are the real problem.

Once I had killed the adult population with sticky traps and potato peelings (to draw them to surface) I made a mixyure of water and a small amount of hydrogen peroxide to kill eggs and larvae. Not too sure that worked...but I rid my grow room.

I now leave sticky traps up all the time just in case any adults come back...so far with my new soil I've only caught 2. Looks like they're gone.

Good Luck eh
 

sproutco

Active member
Veteran
It may be a fungus gnat. They will fly all over your house once they emerge from the soil. They will flock to your garbage can. You will not necessarily find them around your plant especially since you have a fan. A few will probably not reduce your yield if they are in the soil.
 
G

Guest

put a 1" layer of sand on top of your soil to prevent them from laying eggs
 

growmatic

Member
Potato slices on the surface also work for some people... they lay eggs in the potato slices instead of in your roots...
 

Cheeba

Member
optimusprime said:
just as long as its not more than 10 or so dont sweat it.

10 is 10 too many. Eliminate the adult fungus gnats using the yellow sticky tape and use Gnatrol to eliminate the eggs in your soil. The most damage will be done by larvae eating your roots. Check your top soil to see if any damage is done (brown decaying roots).

Do a search or use this thread as reference
http://www.icmag.com/ic/showthread.php?t=1745






 

bp420

Member
i have been battling fungas gnats sufficently lately to know that yes - that is a fungas gnat :D with out doubt.

i would say having that fan next to your plant is why you haven't seen much activity. fungas gnats are shit house fliers..doesn't take much to blow them away.

to make there life even harder, water your plant from the bottom. your thinking "huh?..from the bottom?"
mark on the side of your pot where the soil level is, then fill a bucket that is larger then your pot with your water/nutes and then lower your plant (in its pot obviously) into the water, making sure you stay 1-2 inches below your soil level - that way the soil on top never gets wet - thus fungas gnats unhappy.

sand on top of your soil is a quick remedy, however starves your soil of oxygen, so shouldn't be used for to long.
 

BoB91

Active member
Gosh darn!!!!!

Gosh darn!!!!!

Thank you everyone for that info. Everyone here is so helpful. Someday in the distant future I hope I can meet some of you folks. Maybe in the dam or something. Its funny. Ever since I started coming here to this wonderful place and Everytime I am at work I always look at people and think-HMMMM :chin: does he/she grow. He/she must grow. Especially this one guy that comes to my work. Sometime this middle age guy comes to my work wearing a shirt with a big pot leaf and I always wonder if he is one of the folks on this wonderful site. Oh well thankkkkkks so much for all the advice for this noob. Hopefully I dont kill my first girl and pull some nic ebuddage. Later folks and thank you again :wave:
 
G

Guest

Cheeba said:
10 is 10 too many. Eliminate the adult fungus gnats using the yellow sticky tape and use Gnatrol to eliminate the eggs in your soil. The most damage will be done by larvae eating your roots. Check your top soil to see if any damage is done (brown decaying roots).

Do a search or use this thread as reference
http://www.icmag.com/ic/showthread.php?t=1745






Those are springtails not gnat larvae..sm-90 ,,,,
 
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Watson853

Member
Fungus gnats...Argh. Sometimes the population will explode if left untreated. It's the larvae that will do most the harm to new seedlings, sprouts etc. I knew growers that would use nerve toxins that were short acting in the environment, such as diazenon (sp?), which is no longer available. I tried everything from diatomatious earth to fly raps, never getting rid of them fully.

The little bastards like the soil moist when laying eggs, so if you can let the soil dry out and try an agressive trapping schedule. A layer od diatomatious earth on top will help also. If all else fails use a granular insecticide, but make sure you have enough time so that the toxin can break down in the soil before you put them into flower. I don't use insecticides, but know growers who do, if you understand the mechanisms of the chemical, you can safely use it in very small amounts and not worry about it translocating into the plant tissues.
 
Are your roots rotten? I had such a horrible invasion one time.. the best stuff for them is gnatarol (for sure) or H202 ... I would mix it with nutriants and spray it on top of the tops of the cubes it worked pretty well as a controll...

I don't think they can live in the balls or anything but they can live in the roots on top of them (water will kill them too)
 

The Dopest

[THC] True Hippie Coonass
Veteran
hey i run a recirculatin dwc and have gnats around the root mass. is it ok for me to drop a mosquito bisquit or BCI ring into the reserve? it wont hurt will it? thanks :confused:
 

MTF-Sandman

OG Refugee
Veteran
It's fine...might want to put it in a old pantyhose/stocking as some of them leave granules after they melt which could cause problems if the pump sucks them up. You could also just disolve one in a glass of water and filter the chunks before adding it to the rez.
 

The Dopest

[THC] True Hippie Coonass
Veteran
Thanks Sandman! seems i could just say, "hey Sandman, can i do this" or "can i do that" and you'd be the man with the answer! thanks again!
 

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