Will Freeze Kil Gnat Larvae

Every time I buy soil, I get fungus gnats, invariably.. I treat for them using X-clude Formula 2. (pyrethrins).And mosquito drops, but I can't get rid of them.

When I buy soil, could I just freeze it for a couple days? Would that kill the larvae? I could do it outside this time of year, and package it in small trash bags during the summer for the freezer.

I don't trust freezing to kill off anything. Pain in the ass, but I bake it when the soil has problems...

promis FTMFW each and every time. water 1x in veg and never see another bug, period!

ive been dealing with them from my ocean forest. 1st watering everyone gets a promis watering.

I had an issue and just used a product called vectobac. One does and they were history. Plus I used this gnat mix that you lay over the top of the soil to stop them land or eggs being able to hatch.

Failing that. Just poor Mt dew over them. Seems to solve everything these days. Lol

ProdigalSun said:

Every time I buy soil, I get fungus gnats, invariably.. I treat for them using X-clude Formula 2. (pyrethrins).And mosquito drops, but I can't get rid of them.

When I buy soil, could I just freeze it for a couple days? Would that kill the larvae? I could do it outside this time of year, and package it in small trash bags during the summer for the freezer.

Click to expand...

Of all pesty flies to freeze, this be the worst, these flies, in particular have anti freeze in their blood ....no shit,

so unless you are in northern Siberia or have ur own deep freeze, avoid ....lol

fungus gnats are a pest but not a big one, its really only the grubs that eat the plants roots

and if as bad as you imply I'd top dress the soil with neem oil, plus the plants drink it up

making the plants systemic to any future bug attacks, and non detectable at toking time too

but really this is a no biggy, avoid overwatering/overfeeding and the gnats will leave

good luck

They will just thaw out and come back to life...neem drink, mild dish soap with water