BV, I can only answer half your question - natural predators
for gnats are nematodes and predatory mites... this is
according to The Bug Store people here in town. Lady
says they work really well.

Nedra
http://www.geocities.com/Heartland/Pines/4836
http://community.webshots.com/user/nedra118

"BenignVanilla" wrote in message
...

"broomhilda" wrote in message
link.net...
Get some Off, an insect repellant. That's what I use.

The only problem is that they are !@#$%^ pests and you can't ever get
rid
of
them all. Except in cold weather.
snip

Hmm...I wonder if there is a mail order place we could order natural
predators from?

BV.