First Grow

MissinThe90’sStrains

MissinThe90’sStrains

Well-Known Member
Don’t spray anything in flower there bud, you don’t wanna contaminate your buds. Fruit flies like sweet things and fungus gnats like decaying things so the fruit fly traps unfortunately won’t help much. DE is great but doesn’t do much once it gets wet.

Your best bet is some kind of BTI product and sticky traps. BTI a bacteria that kills the larvae and will kill the eggs in your soil without harming your plant or anything beneficial. Sticky traps will help trap adults. Each one can lay hundreds of eggs, so you wanna kill them for sure. Finally, some sort of mulch or topping like sand or perlite on top of your soil will block them from gaining access to your soil so lay any more eggs.


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Fatjoe

Fatjoe

Well-Known Member
I agree with @MissinThe90’sStrains

It's tough to get rid of them. I've used mosquito dunks in the past and other things.
The gnats will attack any medium but I've had my worst luck with soils or organic based mediums. Every time that brings bugs for some reason. Trips to the grocery store can bring them in too.

Frustrating pest but if ya just manage this grow to completion you'll be okay. Concentrate on killing them all next round. Consider treating any soils prior to use.

I've even used a yard fogger in the grow space after harvest with a good cleaning afterwards works.
 
medfourtwenty

medfourtwenty

Active Member
I have used the sticky traps to no avail.The only thing that worked for me was good air circulation, have your fans blowing across your grow medium .what it does it makes it to where they can't land to lay eggs or take off after being hatched their wings are very delicate so it interrupts it flight pattern works like a charm and ends their life cycle.
 
Fatjoe

Fatjoe

Well-Known Member
medfourtwenty said:
I have used the sticky traps to no avail.The only thing that worked for me was good air circulation, have your fans blowing across your grow medium .what it does it makes it to where they can't land to lay eggs or take off after being hatched their wings are very delicate so it interrupts it flight pattern works like a charm and ends their life cycle.
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Now there's a different approach I've not read before.
 
heydiddlydoo

heydiddlydoo

Active Member
Fatjoe said:
Now there's a different approach I've not read before.
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I appreciate everyone’s input. I thought about adding a fan, but my circuit breaker may trip. Ill have to do a current draw sometime soon and figure out if its safe to add one more load to my circuit. In regard to the BTI stuff, im willing to give it a try, with some perlite/sand
 
FmSwayze

FmSwayze

Well-Known Member
heydiddlydoo said:
Ohh yea. Currently fighting fungus gnat infestation. Sprayed some Seven. Got some fruit fly traps , am watering with a buried hose now. Need to get some DE and put in topsoil
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If you really want a peace of mind. Buy this right now and follow the directions. I have zero GNATS in my organic garden.

MICROBE-LIFT BMC Biological Control, Liquid Treatment for Medium-Sized Decorative Water Gardens Up to 2,000 Gallons, Fountains and Ponds, 6 Fluid Ounces https://a.co/d/9JH2Mma
 
MissinThe90’sStrains

MissinThe90’sStrains

Well-Known Member
FmSwayze said:
If you really want a peace of mind. Buy this right now and follow the directions. I have zero GNATS in my organic garden.

MICROBE-LIFT BMC Biological Control, Liquid Treatment for Medium-Sized Decorative Water Gardens Up to 2,000 Gallons, Fountains and Ponds, 6 Fluid Ounces https://a.co/d/9JH2Mma
Click to expand...
This stuff really does work, but you need to use a lot more than they recommend. I went through a whole 2 oz bottle before I figured it out. I bought more and used 1 TBSP per gallon, a couple times a week and it completely wiped out a really heavy infestation. I also used sticky traps, and hung a strip of “fly paper” in the tent to catch adults (no poison, just sticky tape with attractant).
 
heydiddlydoo

heydiddlydoo

Active Member
@MissinThe90’sStrains @FmSwayze @Fatjoe @medfourtwenty
If you’re tagged thank you.

Operation KillGnat
Gentlemen, As of Monday I declared a war on these dad gum gnats. If you’re mentioned, I’d like to thank you for your input.


Monday
  • Began by adding mosquito dunk to holding tank; this is where they are laying eggs!
  • Removed watering manifolds on top soil and inserted my water line deeper into soil
  • Put perlite on top surface of soil
  • Hung fly ribbons
  • Sprayed seven dust on floor of my grow tent and top soil
  • Added sticky traps inside grow tent
  • Added fly trap containers inside tent
  • Hung fly ribbon outside grow tent

By Thursday
  • Dramatic reduction in population
  • Still more gnats
  • Shut off my water pump to dry top soil out a few days

Today - Saturday
  • Sprayed topsoil with bti and water mix

Sunday
  • Water with hydrogen peroxide

I’ve come to terms that this will be more about reduction and management than complete extermination.



Flowering Updates
It sure smells diddly doo good. Bud sites are growing, and I’m seeing a plentiful harvest ahead late August-mid-September, (hopefully). After trimming poor/dead/low hanging vines last week, the plants look even better. I’m learning that it’s about routine maintenance, and my grow has been low maintenance and easy thus far.


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