IAS Aroid Quasi Forum

About Aroid-L
 This is a continuously updated archive of the Aroid-L mailing list in a forum format - not an actual Forum. If you want to post, you will still need to register for the Aroid-L mailing list and send your postings by e-mail for moderation in the normal way.

  Drowning Fungus Gnats
From: ted.held at us.henkel.com on 2007.04.30 at 06:55:31(15610)
All,

In case anyone is interested, I don't
think fungus gnat larvae can survive immersion in water. As a grower of
the aquatic and semi-aquatic Cryptocoryne aroids, I often see infestations
of these guys in wet, but not submerged soils. If this happens and I care
to do something, I find that raising the water level above the soil for
a few days does the trick. After that, the water level can be lowered again
and the gnats are gone. This also works for mites and aphids and whatnot
critters that breathe air.

Of course, for those of you in the majority
that grow species sensitive to water immersion, this won't work. You should
switch to Cryptocoryne.

+More
Note: this is a very old post, so no reply function is available.