Gnats. I think I found a way to be rid of them forever

dannyboy602

Well-Known Member
I'll post pix later. U can see pix at my page journals anyways.
I had a million gnats in my grow room. I'm pretty sure they came in with the composted manure and the worm castings? Mb. But then I hooked up my Cap
CO2 generator and watched as PPMs went up to 1500, heat in the canopy was as high as 95F but the gnats are mostly gone.
Has anyone else had a similar experience? Was it the CO2 or the heat that killed em?
 

dman8168

Well-Known Member
well i can say from my nat experience it wasnt the heat,my timer blew up after a bad storm here,lights came on during 12/12,fans(from a pc) i had hooked to a an old power supply from a computer died. Plants were subjected to 12 hours of lights with NO fans or exhaust. Totally cured my girl on the stalk. i say all this to say the fungus nats i had a problem with were still alive after that. Pretty sure they are attracted to co2,so im not sure wish u knew as i have them and cant get rid of them.Just sharing my experience.hope u find the answer and share it here.
 

Dankster4Life

Well-Known Member
Some say you can get rid of and control mites with large amounts of co2.Don't know how much truth is behind that but i would think if it can help deal with mites......it'll fuck up some gnats.

I don't think it was the heat.My A/C broke down on me a few months ago when i still had some of the fuckers still and had temps hitting almost 100 for 10 days,didn't phase them one bit.

I now use DE quite a bit and am gnat free.
 

calicko

Well-Known Member
At first glance I'd day it was the CO2 that killed them, as gnats just like any insect or land mammal need O2 to survive but with only 1500 ppm in what im assuming is a medium sized grow space...they had enuf oxygen to survive. So with that said, I would say that they reached their life expectancy and died off but just wait, they'll come back because im positive they reproduced in your soil or a nook somewhere in your grow space, if not somewhere else in your home/building.
 

dannyboy602

Well-Known Member
yeah im thinkin they were all down the shore for the weekend...i saw some this morning just not as many. little fuckers. im glad i gotta 8"can fan to suck a lot out the chimney too
 

vanthojo

Member
Got rid of my gnats with a package of the sticky fly traps that you hang up from Walmart. After the first week they were pretty full. Not the best solution but it worked for me and was a cheap/quick fix.
 

napa23

Well-Known Member
You don't really need all that. Let your soil dry out, #1. #2, stay on top of them. I had a small fungus gnat problem. New ones would come out everythime I watered. I would sit there for a few minutes t just smash them with my fingers. Then I just kept letting the soil get fairly dry. If you catch them before they explode, all you need is a finger lol. Also, prevention is huge. I don't leave any of my doors open for long. Just going in or out and quickly close it.
 

Dubbz0r

Well-Known Member
If you don't want to treat your soil or smash the gnats with your finger you could use c02 and smother them to death. Any living creature exposed to extremely high levels of c02 will die. I found this out by accidentally leaving my c02 tank on full blast for roughly 7 minutes or so.
 

Dankster4Life

Well-Known Member
If you don't want to treat your soil or smash the gnats with your finger you could use c02 and smother them to death. Any living creature exposed to extremely high levels of c02 will die. I found this out by accidentally leaving my c02 tank on full blast for roughly 7 minutes or so.

High co2 levels kills what is in your medium?
 

dman8168

Well-Known Member
so this morning after posting i did a little research....

Decomposition of organic matter is largely a biological process that occurs naturally. Its speed is determined by

three major factors: soil organisms, the physical environment and the quality of the organic matter (Brussaard,

1994). In the decomposition process, different products are released: carbon dioxide (CO2), energy, water, plant

nutrients and resynthesized organic carbon compounds. Successive decomposition of dead material and modified organic

matter results in the formation of a more complex organic matter called humus (Juma, 1998). This process is called

humification. Humus affects soil properties. As it slowly decomposes, it colours the soil darker; increases soil

aggregation and aggregate stability; increases the CEC (the ability to attract and retain nutrients); and

contributes N, P and other nutrients.

Soil organisms, including micro-organisms, use soil organic matter as food. As they break down the organic matter,

any excess nutrients (N, P and S) are released into the soil in forms that plants can use. This release process is

called mineralization. The waste products produced by micro-organisms are also soil organic matter. This waste

material is less decomposable than the original plant and animal material, but it can be used by a large number of

organisms. By breaking down carbon structures and rebuilding new ones or storing the C into their own biomass, soil

biota plays the most important role in nutrient cycling processes and, thus, in the ability of a soil to provide the

crop with sufficient nutrients to harvest a healthy product. The organic matter content, especially the more stable

humus, increases the capacity to store water and store (sequester) C from the atmosphere.



General Houseplant Pest information: Fungus gnats are small black flies that are attracted to carbon dioxide. That's

way the are always in your face when you have an infected plant. Fungus gnats feed on decomposing matter in the

potting media. Fungus gnats won't really hurt a large plant, but they are very annoying.



Like many insects, fungus gnats develop through metamorphosis. They start out as larvae in the top layers of soil,

develop into pupae and thence into the winged, flying adult. Total developmental time to adulthood is 2-4 weeks.

During the larval stage they feed on fungi in the soil as well as decaying organic matter and plant roots. Once they

reach adulthood, fungus gnats typically last just long enough to seed a new generation of larvae.

Marijuana cultivators particularly need to be on the lookout for fungus gnats, as the larvae, in addition to

attacking the roots of your precious ganja plants, will leave behind casings that quickly ruin the drainage

properties of your soil. Cannabis requires good drainage and a steady but small supply of water, so an overwatered

marijuana plant that falls victim to a fungus gnat colony has two strikes against it. If an infestation occurs

during the flowering stage of the plant's growth, it could seriously reduce yield.

Getting rid of the adults is a snap: simply give them a sticky yellow surface to land on, and within a few days

you'll have enough dead adults to make a tasty dinner of gnat casserole (YMMV). The larvae are a bit trickier. The

first step toward getting rid of them is to starve your plant of water for a few days, letting the top layers of

soil dry completely. Larvae cannot develop in dry soil, though they can survive a drought by suspending their

development. Don't worry about killing your plant; it takes serious dedication to kill most houseplants from

underwatering, while overwatering a plant can kill it very quickly.

Once the soil is dry, mix 1 part hydrogen peroxide (H2O2) solution with 4 parts water. Use 3% solution, which you

can find in any drug store or in the hygiene/medicine aisle of a chain grocery store. You can use a stronger

solution if you change the water mixture appropriately, and don't be too concerned with proportions; it would take a

very high concentration of H2O2 to hurt your plants. Just make sure you buy pure H2O2 with no chemical additives!

Hydrogen peroxide is often sold as a topical disinfectant, and things that are good for your wounds may not be so

healthy for your plants.

As with any other human,plant,animal anything in excess can be deadly.
 

Kingrow1

Well-Known Member
I use a lot of tin foil, there is a lot to the fact that the reflection of light from tinfoil confuses flies and gnats which they dont like so leave the area and fly off somewhere else. I have seen Co2 work on other grows but impractical on mine. Predatory bugs are my other defense along with covering the pots to prevent access to soil.

I use nicotinamide base insecticides for my veg crops because they are totally harmless and organic and kill any plant feeding bug but do not wana use it with products i smoke. I see a lot of good work done by benificial organisms, fulvic and humic acids etc etc which help the plant fight of, resist and grow stronger to bug attacks, i would not mind the odd few bugs and flies if my plant could outgrow the damage. I guess its all about building up a resiliance and stronger plant with these benificials. This is my next thing i want to work on so guess ill find out how good it is soon. Peace
 

dannyboy602

Well-Known Member
If you don't want to treat your soil or smash the gnats with your finger you could use c02 and smother them to death. Any living creature exposed to extremely high levels of c02 will die. I found this out by accidentally leaving my c02 tank on full blast for roughly 7 minutes or so.
u know thats wut i thought. some ppl are saying that its just a myth. ppm's were only 1500 but, oh and the temps were like 95F, but they multiply like spider mites. i may do a drench of something. i really HATE using petro chemicals. subcool recommended just covering up the soil with any kind of barrier and i just may lay dry, old newspaper enough to keep em out long enough to interupt their life cycle.
 

dannyboy602

Well-Known Member
Some say you can get rid of and control mites with large amounts of co2.Don't know how much truth is behind that but i would think if it can help deal with mites......it'll fuck up some gnats.

I don't think it was the heat.My A/C broke down on me a few months ago when i still had some of the fuckers still and had temps hitting almost 100 for 10 days,didn't phase them one bit.

I now use DE quite a bit and am gnat free.

thanks for that...um..can someone tell me what DE is?
 

Dankster4Life

Well-Known Member
Lol.....shoulda just spelled it out as alot of peeps don't know either.

Diatomaceous Earth is the product.It is made up of old rocks found in sea beds and ground up to a very fine powder.You can rub it on your pets for fleas,put around your home as a barrier,lots of uses.I mix it with my soil and top dress every once in a while.Also has silica in it which helps strengthen the plants cell and tissue structure.There are different kinds,food grade is the one that most gardeners use.

It works by cutting and slicing the bugs up.

best way to put it....

Imagine yourself crossing the Sahara desert barefoot and the whole thing was covered in tiny sharp shards of glass....thats what adding DE to the medium does.

And if it matters to ya it is OMRI listed
 

cannabisguru

Well-Known Member
You don't really need all that. Let your soil dry out, #1. #2, stay on top of them. I had a small fungus gnat problem. New ones would come out everythime I watered. I would sit there for a few minutes t just smash them with my fingers. Then I just kept letting the soil get fairly dry. If you catch them before they explode, all you need is a finger lol. Also, prevention is huge. I don't leave any of my doors open for long. Just going in or out and quickly close it.
You sound just like me.. I too will sit there and wait for them to come out of the soil.. then I'll try smashing them with my fingers. I've had a great success rate.. but I know that even though I'm killing the live ones, I know that there are eggs/larvae in the soil that I can't see. So even though I was making an impact against the gnats.. I still have future wars coming.. because of the unborn gnats that are possible in the soil. Little bastards.. I hate them! They also get into my food/drinks sometimes.. and it makes me fucking feel like I'm living in the ghetto or the slums.. makes me feel like white-trash! But I'm nowhere near the ghetto.. nor am I white-trash.. but these fuckers will make you feel like you are.. :| fuckers.

I think while I have things shut down, I think this would be a good time for me to start trying to get rid of them. I'm thinking of going and looking for some indoor bug killer.. that you can use indoors. The only problem I think I'll have is.. is that I have 2 dogs that live with me. Just me and the two dogs live here.. so I was thinking that maybe I can find an indoor bug killer that will kill all insects/bugs.. but at the same time won't hurt my dogs.

Anyone know of any brands/names of indoor insect/bug killers that I can use.. that won't hurt/harm my dogs? That would be great!!

peace & hugs ppl
 

Dankster4Life

Well-Known Member
You sound just like me.. I too will sit there and wait for them to come out of the soil.. then I'll try smashing them with my fingers. I've had a great success rate.. but I know that even though I'm killing the live ones, I know that there are eggs/larvae in the soil that I can't see. So even though I was making an impact against the gnats.. I still have future wars coming.. because of the unborn gnats that are possible in the soil. Little bastards.. I hate them! They also get into my food/drinks sometimes.. and it makes me fucking feel like I'm living in the ghetto or the slums.. makes me feel like white-trash! But I'm nowhere near the ghetto.. nor am I white-trash.. but these fuckers will make you feel like you are.. :| fuckers.

I think while I have things shut down, I think this would be a good time for me to start trying to get rid of them. I'm thinking of going and looking for some indoor bug killer.. that you can use indoors. The only problem I think I'll have is.. is that I have 2 dogs that live with me. Just me and the two dogs live here.. so I was thinking that maybe I can find an indoor bug killer that will kill all insects/bugs.. but at the same time won't hurt my dogs.

Anyone know of any brands/names of indoor insect/bug killers that I can use.. that won't hurt/harm my dogs? That would be great!!

peace & hugs ppl

EcoSmart

Just got some last week from Home Depot.All organic inside or outside pest control,safe around pets and children which is why i picked it up.Was using some black Flag shit and just the smell i was like "No frickin way am i usin this around my children".

$10 for half a gl
 

cannabisguru

Well-Known Member
EcoSmart

Just got some last week from Home Depot.All organic inside or outside pest control,safe around pets and children which is why i picked it up.Was using some black Flag shit and just the smell i was like "No frickin way am i usin this around my children".

$10 for half a gl

Thanks for the help!

peace.
 

elduece

Active Member
1500 ppm of CO2 is not enough to kill anything. I'd say that your top soil became dry enough by the heat to kill the eggs off laid by the flying adults thus breaking the reproductive cycle for the mean time. Larvae thrives in moist environments. They'll be back if your not doing anything preventive.
 
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