Fungus Gnats

[bobbyp]

What is the best procedure for getting rid of fungus gnats ? Someone told me you could use hydrogen peroxide as a drench to kill the adults and the larvae, does anyone know the dose ?

 

[baccas125]

Mosquito dunks.

 

[bobbyp]

Mosquito dunks.

Could you elaborate a little on that method.

 

[HeadyPete]

H2O2 is good, dunks are better. The active agent in dunks is a bacteria that gives many different larvae, including mosquito and fungus gnat, the plague.

The best IMHO is beneficial nemetodes. Once unleashed in your soil or rez they will seek and destroy dozens of pests, including gnats. Most effective if applied correctly.

Use half at first and the rest 2 weeks later, because it doesn't affect eggs.

MOSQUITO DUNKS- Bti (Bacillus thuringienis israelensis)

The mosquito eggs are very hardy and manage to live under almost all conditions.
When the water temperature is right, the eggs hatch and become mosquito larvae
which swim around eating and growing.
In about a week they become full-grown mosquitoes and fly out of the water looking for someone to bite.
Mosquito Dunks containing Bt israeliensis float on water and will keep on working for 30 days or longer and are completely biodegradable.
While floating, they slowly release a natural mosquito-killing biocontrol agent, Bti (Bacillus thuringienis israelensis) at the waters surface.
This agent gradually settles in the water where it is eaten by mosquito larvae growing there.
Bti (Bacillus thuringienis israelensis) is a bacterial toxin that infects and kills mosquito and black fly larvae.
It is safe and environmentally sound because it is highly selective, killing mosquitoes and black flies.
Bti contains no poisonous chemicals and is completely harmless to other living things! When Bti is eaten by the mosquito larvae, it damages the gut cells, eventually entering the body cavity. Once this happens, the larvae die.

http://www.doyourownpestcontrol.com/SPEC/pick-mosquitodunk1.htm

The Google...it's a wonderful thing!

 

[HeadyPete]

What is the best procedure for getting rid of fungus gnats ? Someone told me you could use hydrogen peroxide as a drench to kill the adults and the larvae, does anyone know the dose ?

Use 3% (drugstore type) straight. It will also oxygenate your roots, but it will kill the natural bio action in your soil or organic rez.

 

[stretchpup]

Could you elaborate a little on that method.

They come in 6 or 8 packs from depot, small donuts of compressed material. Under $10.

Break one up into the granules and sprinkle them on top of all your pots. Doesnt take much at all.

Bye bye gnats. The parents will die off and any eggs/offspring won't survive.

About every 2 months I dust the tops of pots, and recently I started using dunks out back in the mixing tubs too. Sometimes I have soil outside for 60 days before the next cycle...

 

[Matagal]

i hate gnats, and use a yellow glue strip to greb them
i wanna kill the larvae, and hear abou a tomato slices over the soil to atract the larvae.

matagal

 

[buzzmobile]

Use potato slices, Matagal.

 

[Matagal]

thankss, i read about, and start using today.

 

[inflorescence]

diatomeacous earth
gnatrol (mosiquito dunks) BTi
nematodes

= no more gnats

 

[Ktaadn]

All good suggestions. Be sure to let the soil dry out as much as possible between waterings too...they don't like dry soil.

 

[Ghost]

Gnatrol for a soil drench to kill the larvae, and yellow sticky traps to catch the adults. Spraying some Monterrey garden and insect spray helps knock 'em down too.

 

[Pursie]

hi, hate them bugs. would this also apply to coco?,

1st time in coco and i see those little flies zooming around until they hit the stickies

got some hydrogen peroxide from chemist today (amusing trip at the chemist ) prob will mix with water and feed them tonight. I'll let you know how it went

where would i get mosquito dunks from?, also what would i ask for without sounding like a dumbass ?

 

[Ch@ppers]

Clay pebbles!

Fungus gnats are the reason I started putting a layer of clay pebbles on the soil around the bases of my plants and I use them to this day.

The fungus gnats can't get down through the pebbles to lay their eggs, simple as that! It also keeps the humidity down as the water vapour condenses on the pebbles instead of going up to your buds and acts as a moisture retaining mulch so the roots grow right up to the top of the soil, making use of every bit of soil so you don't get that dry, loose layer of soil on the top.

Ch@ppers

 

[smokedoja]

im growin in a dwc bucket, with a 3in netpot and claypebbles, yet somehow i have fungus gnats... most said Fgnats were attracted mostly to soil...anyways i just bought some GNATROL today, can you use this in a DWC bucket?