I am new, so hi to all.
The cheapest fly trap is simply a "Clear" plastic pop bottle
with a very "Clear" tube (I bought mine at the nearest Aquarium Store)
although you can try the casing of a clear pen.

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Fly trap works because the last thing
a friut fly is going to think is the exit is in the
middle of the container.
Note: A Slice of bannana works best for me
but you might want to try Vinegar and let us
know if Vinegar worked.

Another method noted for house flies looks
like this:

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This trap works for the same reasons as above
plus because flies tend to fly upwards to excape
they don't figure this one out either.

Just cut a pop bottle in half and drop in a little
meat for bait and push the inverted top into the
bottom. And then invert the hole thing. The flies
enter in the grooves at the bottom fly up and its
all over...

Good luck
Micky and Guara


"Bob Walsh" wrote in message
...
I have a sundew plant. Got it at Home Depot.

I find the 'dew' dries up due to low humidity even when it isn't low (70).
To counter that I set a 4'' plastic plant tray inside a cut off gallon
apple juice jug (cut at the point that it starts to round up to the top).
Then I set the sundew in the tray and keep water in the tray. To further
keep the humidity high I take a bag from the prepackaged grapes and put it
over the top. The fungus knats go in thru the holes in the grape bag. My
sundew is adequetly fed by the gnats caught. Do not fertilize the sundew.

I have a couple other carnivorous plants in the orchid area. One is a
Nepenthes also from Home Depot and the other is a Sarracenia bought from J
& K Orchids at a MN Orchid Society Meeting.
Orchids Limited also has Carnivores.

Bob

"Byron" wrote in message
oups.com...
You can drown the nats. Wait till your orchids are ready for their next
watering, then emerse each pot to the rim in plain water. Keep it
submerged for 15 minutes. It kills the larva but won't damage the
orchid.

You can also get a Sun Dew plant, a carnivourous plant with sticky
hairs on the leaves that capture the flying nats. It won't kill them
all, but reduces the problem significantly.


J Fortuna wrote:
My mother-in-law reports that one of her grandsons, a 2-year-old
nephew of
mine, today decided to all of a sudden "repot" one of her orchids. As
far as
I understand not much happened to the orchid, but in the process two
fruit
flies were observed flying out of the medium. Apparently my
mother-in-law
has been experiencing quite a few fruit flies lately (she live in
Wisconsin), and now she suspects that the orchids are or at least may
be
infested with them.

Do you have any experience with fruit flies in orchid medium? And if
so,
what should one do about them?

Thanks!

Joanna