Gnats in the grow tent help please

budzrus

budzrus

Active Member
Hey all I have a question I hope someone can answer for me. My grow tent has a gnat infestation. Will the gnats hurt the plant and what is the best way to get rid of these things? The plant does not seem to be affected by them by they are a nuance. Thanks for your help in advance.
 
haight

haight

Well-Known Member
Order some gnatrol and follow directions. Also, get some flypaper and put that in there. Get used to them cause they never go away. You can keep them down but not out.
 
dbkick

dbkick

Well-Known Member
other than popping out maggots all day and sticking to your buds the adults are harmless, it's the larvae you have to worry about damaging the plant at the rootzone.
 
bestbuds09

bestbuds09

Well-Known Member
dbkick is right on about the larvae. in my case i used SNS 209 and within a week i had nothing. you can also add some sticky fly traps and have a fan blowing towards the sticky paper. an inch of sand does the work too. but the best thing ive used was the SNS 209.....
 
surfhead

surfhead

Well-Known Member
Put an inch or so sand on top of your soil , this will stop them from laying eggs in the soil ! i had that problem a while back and tried this ,never had a problem again , i use sand every time !!
 
blindbaby

blindbaby

Active Member
i have learned the hard way, but im glad. well, they do eat up roots. not good. so. instead of telling u a long story, ill just tell u some things i do, that work.
when preparing your soil to use, cook it at 25-275 for 40 minutes. i do this, and empty the metal pan into a wheelbarrel. i repeat, until i have all i need. this kills 95 % of gnat eggs/larva. it should kill em all. maybe if i stilled the stuff, halfway thru cooking? then , when i transplant, i add one tsp per gal, of "gognats". (cedar oil). step three. after the plants are in flower, (if needed), i use 3 tbl per gal , of hydrogen peroxide. this also cleans the roots, but it u use a microb tea, may, lesson these good things, to. there u go. and i still use the yellow sticky paper. the most effective part? the cooking of the soil!
 
blindbaby

blindbaby

Active Member
my gnats come with the soil, so this tech may not be feasible, unless they need surfave access to reproduce.
 
blindbaby

blindbaby

Active Member
blindbaby said:
i have learned the hard way, but im glad. Well, they do eat up roots. Not good. So. Instead of telling u a long story, ill just tell u some things i do, that work.
When preparing your soil to use, cook it at 25-275 for 40 minutes. I do this, and empty the metal pan into a wheelbarrel. I repeat, until i have all i need. This kills 95 % of gnat eggs/larva. It should kill em all. Maybe if i stilled the stuff, halfway thru cooking? Then , when i transplant, i add one tsp per gal, of "gognats". (cedar oil). Step three. After the plants are in flower, (if needed), i use 3 tbl per gal , of hydrogen peroxide. This also cleans the roots, but it u use a microb tea, may, lesson these good things, to. There u go. And i still use the yellow sticky paper. The most effective part? The cooking of the soil!
Click to expand...
it rubs the lotion on its skin, or else it get s the hose again!
 
Straightjacket

Straightjacket

Well-Known Member
gnats are attracted to yellow. i use yellow sticky traps. they have no poison or nothin. I thought I just had a few gnats but the next day theres like fricken hundreds of em stuck to the traps.
 
Coho

Coho

Well-Known Member
Let the soil dry between waterings.they like a real moist area, BT in your reg water, perlite on top, yellow sticky trap or red. I smear tanglefoot on yellow and red solo cups exterior. Then put em between the pots. I've heard good things about Gnatrol.
 
dbkick

dbkick

Well-Known Member
Straightjacket said:
gnats are attracted to yellow. i use yellow sticky traps. they have no poison or nothin. I thought I just had a few gnats but the next day theres like fricken hundreds of em stuck to the traps.
Click to expand...
tube of tanglefoot and some yellow paper of some kind from the hobby store and you can make your own sticky traps for pennies.
 
er0senin

er0senin

Well-Known Member
Get a very small amount of nicotine into your water.
plants are not super sensitive vs nicotine. but insects are :)
 
Trousers

Trousers

Well-Known Member
Go natural.

Get some yellow fly paper and hang them all around.
Get this:




Put some crumbles in a small bowl with water and put the bowl on your soil.


(I haven't tried this) Get a potato and cut it up. Put the pieces on the soil. Take them out the next day and put them outside or down your garbage disposal. Supposedly the gnats lay eggs in the potatoes. (This was from a non-weed grower, but still indoor plants)

I have bought nematodes from the hydro store. You water with them they make a colony and feed on the gnat larvae.



I know these all work, except the potato. If you do all of it, you should see good results in less than a week.
 
LeafGnosis

LeafGnosis

Active Member
going through this now myself. I have goNats and am drying out my soil. The funny thing is, I have put a bowl of water down with a sponge to help on humidity and when I look in the bowl I see more gnats in there than on my fly trap paper lol... though the bottom of the bowl has some soil... but soaked so I am not sure what attracts them to the water but it seems to be killing two birds with one stone :)
 
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