Can fungus gnats be killed by freezing

karyn1(7a)February 14, 2007

I had a few pots of cuttings and seedlings that were infested with fungus gnats. The plants have been removed but I was wondering if the gnats could be killed by freezing temps? I stuck the pots outside and our temps are below freezing. If I leave the pots out for a few days could I reuse the soil or just forget about it? I usually use Bt or peroxide to fight the gnats but it didn't solve the problem in a few of the containers.

Thank you for reporting this comment. Undo
ken_adrian Adrian MI cold Z5

i would just put the soil in a baggie and microwave it.. see the link .. ken

Here is a link that might be useful: sterilization

    Bookmark   February 14, 2007 at 2:37PM
Thank you for reporting this comment. Undo

I've used the microwave and oven sterilization methods. I just wanted to know if freezing would work also. It's miserably cold here so it might as well be good for something. lol That way I don't have to make a mess in my kitchen. By the way a great way to get the smell out of the microwave if you use it to sterilize soil is to microwave a cup of vinegar after you are finished. It takes the musty soil smell away immediately.

    Bookmark   February 14, 2007 at 2:49PM
Thank you for reporting this comment. Undo
ken_adrian Adrian MI cold Z5

i close the zip lock .. and never have a smell .... and i dont cook it long enough for the bag to explode .... ken

    Bookmark   February 14, 2007 at 5:58PM
Thank you for reporting this comment. Undo

Most all insect eggs have survived for eons in temperatues far below freezing, so freezing will not eliminate your problem. freezing will kill the adults and larva off but not the eggs.

    Bookmark   February 15, 2007 at 7:34AM
Thank you for reporting this comment. Undo

Thanks Kimmsr. That's what I was afraid of : (

    Bookmark   February 15, 2007 at 6:16PM
Sign Up to comment
More Discussions
Black/brown dots on basil, diamond-shaped bugs
Hello, So, something has been injuring my basil plant....
Will these onions be any good?
I planted onions last year and the grass got in them...
Aphids? Spider Mite? Thrips?
About a month ago, my husband bought me this plant....
Sure fire way to get rid of Earwigs
I read the FAQ's for Earwigs and no mention was made...
Question for the 'Regular' contributors
I've noticed a real slow down in this forum since the...
rhizo_1 (North AL) zone 7
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™