Fungas Gnats - Desperate Acts

yktind

yktind

Well-Known Member
So on my last grow I noticed what looked like nute burn towards the end of the flower cycle. I also noticed a bunch of gnats that were flying around the room... I didn't put 2 and 2 together until it was to late.

I ended having a decent harvest but my yield and quality suffered because of the gnats. The actually lay the eggs inside your medium the larvae then eat the roots and root hairs (this is what I believe causes the nute burn look) <---- I have no scientific data showing this, it is just my assumption.

Since my last grow I cleaned everything lit off 2 bug bombs with a couple of weeks in between ( I even used two brands). I spray the veg girls with azamax about once a week to build up a nice coating before flowering. I then light off a Dr. Doom bug bomb right before flipping 12/12. Basically I took some steps in preventative maintenance. ***I am on day 21 of 70 ish***

Unfortunately when I made my first aero unit I drilled out the net pot holes a little to big. Meaning the are 1/16" smaller than the net pots (which turns out isn't near enough. I like 1/4" now). Three of the net pots have fallen through the lid exposing the root chamber to a little bit of lit, air and warmth (gnat heaven).

Desperate Times and Desperate Measures:

Here is my band-aid fix.

Went to homedepot got some expanding foam. Wadded up some Tyvek and stuffed it into the exposed gaps... Then emptied the can in between light protector and lid holding plants. Also, I setup a few sticky traps around the garden and house. (We are going to war)

I am hoping that this doesn't randomly kill my plants but I am pretty certain that they will be fine. I didn't water for about an hour to let the foam harden up. Then did my water change as normal and the plants looked fine when I went to Sleep.

Has anyone else done something like this? have any better remedies? Done something more desperate?




Here are the pictures:
IMG_3981.JPG IMG_3990.JPG IMG_3991.JPG IMG_3994.JPG IMG_3996.JPG IMG_3997.JPG


Oh and here are the girls right before sleep:
IMG_3986.JPG IMG_4002.JPG

Here is a link to my grow in case anyone wants to stop by:
http://rollitup.org/t/yktind-aeroponic-continuous-the-legend-of-swog-and-snog.785275/
 
yktind

yktind

Well-Known Member
So the Mychs just help fuck shit up or what?

I am pretty sure they are gnats as they fly and stuff.
 
S

sacro

Active Member
Amonia solution (10%), a teaspoon per litre. Water with that and they' stop the egging in your soil. As for the flyers, find a box about 15x15cm and fill it half full with coke. Then add a couple of drops of soap (something that solves fat) and stir carefully. Put that in the room and the flyers are gone in a few days.

Also, nothing of this will harm your plants at all AND its cheap as hell ;)

Sent from my D5503 using Rollitup mobile app
 
yktind

yktind

Well-Known Member
Just a small update. I seem to be rid of the gnats in the flower tent. But I am still seeing signs of them in the Veg room.

I ended getting some Orca:



Will let you guys know what happens in the next couple weeks. The only issue is that I am in Aeroponics and about 90% sure that the microbes will not survive in this environment. So we shall see.

Also, what I means by signs... The new growth is disfigured and looks burnt. (I know that it isn't nute burn because the other plants looks great. And the PPM's aren't that high)

I will get some pictures of what I am talking about tonight.
 
DrKingGreen

DrKingGreen

Well-Known Member
yktind said:
Just a small update. I seem to be rid of the gnats in the flower tent. But I am still seeing signs of them in the Veg room.

I ended getting some Orca:


Will let you guys know what happens in the next couple weeks. The only issue is that I am in Aeroponics and about 90% sure that the microbes will not survive in this environment. So we shall see.

Also, what I means by signs... The new growth is disfigured and looks burnt. (I know that it isn't nute burn because the other plants looks great. And the PPM's aren't that high)

I will get some pictures of what I am talking about tonight.
Click to expand...
Coulda saved $30 by buying pond enzymes instead for future reference. Bacillus thuringiensis subspecies israelensis will rid you of fungis gnats. It can be found in products such as "Mosquito Bits." This and a systematic like SNS209 will keep them at bay permanently.
Edit: You could just skip the sns209 and only use the bti. I use the sns 209 my whole grow though and it keeps them from ever coming around.
 
yktind

yktind

Well-Known Member
DrKingGreen said:
Coulda saved $30 by buying pond enzymes instead for future reference. Bacillus thuringiensis subspecies israelensis will rid you of fungis gnats. It can be found in products such as "Mosquito Bits." This and a systematic like SNS209 will keep them at bay permanently.
Edit: You could just skip the sns209 and only use the bti. I use the sns 209 my whole grow though and it keeps them from ever coming around.
Click to expand...
If they don't turn around in a couple of days I will go get the pond enzyme. Any recommendations on brand?
 
yktind

yktind

Well-Known Member
I just got some of this: Gnatrol WDG

If the Orca doesn't show any help then I will be dousing them with the WDG.

This is what the site says (For Organic Production):
Repackaged in 1-60gram bottle...NEW FORMULATION Gnatrol WDG Water Dispersible Granule biological larvicide offers the same effective control of fungus gnat larvae that growers expect from Gnatrol, but with added product benefits. Increased shelf life - now 2 years liquid formulation was only 1 year Much more concentrated; less product packaging to carry around and to dispose of Increased convenience and application accuracy Easier to measure and wont leave a residue like the liquid formulation Can be used on vegetables, bulb crops, bedding plants and a wide variety of ornamentals Fungus gnats stop feeding almost immediately after it is digested, and death occurs 24 to 48 hours later OMRI listed Gnatrol WDG is a biological control for fungus gnat larvae. It contains a variety of bacillus thuringiensis bacteria that kills most gnat larvae. Apply as a soil drench or add to the nutrient solution of your growing system. Does not kill adult fungus gnats, but once the larvae is killed, the adults will quickly die off. Can be used up to the day of harvest on all edible plants. Use 0.25 to 3.25 teaspoons 0.9 to 7.3 grams per gallon of water depending on severity of infestation.
 
DrKingGreen

DrKingGreen

Well-Known Member
Damn man, you're strugglin over there I feel bad. First time I had them bad they tore apart my hair roots anywhere near the surface and it killed my plants water and nute intake
 
yktind

yktind

Well-Known Member
Well I killed them off in the flower room. The expanding foam pretty blocked all entrances.

But I am still dealing with them in the veg room. Seeing signs of them. Plant leaves looking burned and rounded. Just not growing properly. The other plants in the same setup are doing fine. So it looks to be 2 of the veg plants.

Will have pics tomorrow.
 
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