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RE:Flightless Fruit Flies

The possibility of 1000 flies in three weeks as a production calculation
would be a direct reflection on the number of flies you started the culture
with...and the actual species of fly. The *S. hydei* has a gestation of
about a month, the *D. melanogaster* has a gestation of about 2 weeks. The
former is generally referred to as "flightless" the later, "wingless."

It is possible that you could have that many flies in a singel culture in
three weeks from the *melanogaster* but you would also run the risk of
crashing the culture unless the there was enough medium (the green stuff) to
sustain the colony size through the gestation period (two weeks).

The temperature is in the range.

The green stuff you refer to is probably a potato flake based food (commonly
used) with a die added to that counting maggots is easier. There is more
than likely a mold inhibitor added also. It's probably not a food fish food.
My the time it will come out of the container it will be pretty nasty.

Jim Atchison

The Bug Farm <http://www.livefoodcultures.com>
781 Del Ganado Road
San Rafael, CA  94903
415-472-7294 ext. 222

San Francisco Aquarium Society
<http://www.sfaquarium.org>


--> Date: Mon, 23 Jul 2001 02:07:04 -0700 (PDT)
--> From: Dale Medina <dale_a320 at yahoo_com>
--> Subject: Flightless Fruit Flies
-->
--> I just bought this flightless fruit flies inside a
--> small taller than wider round container with some
--> green stuff inside. The direction for breeding says it
--> will produce about 1000 fruit flies in about 3 weeks
--> if kept about 75-83 temperature! Does anybody know
--> about this? I sure don't but I thought I'd try it for
--> my killies. Is the green stuff bad for the fish?
-->


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