fungus gnats finally solved - to easy

tyke1973 said:
The best way to combat them is to cover top of medium,It happens more in organic soils or soil that are kept outdoors.But has long has the top inch is covered it make it hard for them to hatch ,i even go further with larvae rock on top.If you do see them hatch get sticky strips and they head straight for them but let the medium dry out ,it forces them to hatch
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This sounds hard than turning a fan on.

I have heard though that this is a successful method.
 
tyke1973 said:
Fungas knats do just fine outdoors in wind turn a fun on then bro but if that knat ends up on medium eggs laid
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Do doubt. They are one of the mysteries of the way of the world. These things show up in the dead of winter.

They aren't making it over here anymore though. The fan has cleared them up. I've brought in new soil, they show up and disappear. It might be the best change I make this year. Absolutely unbelievable given my past battle with them.
 
I dumped 2 cups bleach around/down each drain a few days ago and moved the bag of soil outside and haven't seen anymore fungus gnats. Nothing stuck to the strips.
 
Growers log, day 82. The gnats have allied with the spider mites in an all out attempt to cripple our crops. They fly through the fans torrent of wind like happy little birds on a spring morning, while the mites succle on the tender leaves like thousands of horny hungry baby goats at the teet. The tennis racket only works with the gaurd off and the battery twisted just right. One last ditch attempt will be made with

1tsp dish soap
3tsp amonoa
1gal water

Sit for an hour, the wash with
2tsp citric acid
1 gallon of water

God help us
 
I battled the fungus gnats all last winter, it was a terrible infestation. Part of the problem was using air pots instead of the fabric bag pots, the gnats used the holes in the side of the pots like Hotel California. I went back to fabric pots.

I ended up using mosquito nets just like the picture above, which did help contain the flying gnats, but they are still active inside each mosquito bag, and that doesn't kill the eggs which hatch into larvae and do the damage. For that, you need mosquito bits, 4 tablespoons per gallon of water. That stuff does work but it takes several water cycles.

In the meantime, you need to contain the flying gnats or they will keep laying new eggs. Instead of mosquito bags, I cut pieces of fabric from one of the fabric pots and cover the top of the soil with the fabric. The soil will still breathe just fine, and the gnats can't get in and out. You can water right thru the cut in the fabric, just remove and replace the tape. Leave some excess to tuck the sides in all the way around. You may want to put something on top of the fabric to hold it down between watering, if necessary.

IMG_0029.jpeg
 
Fungus Gnat problem resolved.

After dumping bleach down all drains I still saw limited Fungus gnats flying around. One day I noticed a fungus gnat in a garbage can. I use paper towel and toss them into the trash can wet. I think the Fungus gnats were flying around, banging then laying eggs in the trash can and even though I toss the trash out regularly they'd find their way back to where they were born and find more wet paper towel to raise the next family.

All moisture has to be eliminated.
 
Mosquito bits worked. I used 12" × 12" sticky traps, and just cut them to fit over the pots. I've since switched to sips, so no more gnats. They were definitely coming from the compost I purchased.
The mites got a few bug bombs after harvest, and I've been spraying with pyrethrin every week. The pyrethrin seems to be the only thing that is truly effective
 
I like the nematodes myself, just hard to get in the middle of the summer here. The Spinosad took out a huge number for me last week. gonna have to drop a little fan down there.
 
brought them in a few months ago with a bag of coast of maine. Been watering with dunks and also do a foliar of soil surface every other day. Seems like its working. 3rd year of growing, first experience with the fucks
 
Magic Man 540 said:
brought them in a few months ago with a bag of coast of maine. Been watering with dunks and also do a foliar of soil surface every other day. Seems like its working. 3rd year of growing, first experience with the fucks
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Do you have yellow sticky traps? You might think it's working, but they are hiding. The traps will tell you if they are still a problem.
 
Antidote Man said:
I pay 30$ for a half pound and dose a quarter to half teaspoon per 2 gallons in my watering bucket. The last bag I bought was a while ago and I still have almost half a bag...

I gladly pay that to get rid of them, and as far as I can tell, it works. no more gnats on my plants.
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Got a link to that?
 
PopAndSonGrows said:
View attachment 5271549
An idea my buddy came up with, he said it totally kept the gnats contained!
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My favorite way! Cool because it still drains, and you can still water through it NP, but they can't fly in or out. Breaking their life cycle easily. ;)

I used panty hose, but they aren't big enough to drop larger size pots into, so I would just cut up the bigger xxl hose liners and tape sections of the material over around the openings.. especially the drainage holes down below. Its stretchier than other materials too so you can get tight fits.

I figured the small flyers could fit through most the mesh\strainer bags I checked out at the time, so panty hose it was! If I mostly grew in soil or coco these days, every pot would always be covered just like that.
 
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