On Tue, 12 Jun 2007 04:39:41 CST, "Davy"
wrote:

I have been advised that I need some fish in my deliberately fishless
wildlife pond to control the mosquitoes. My neighbour has offered
sticklebacks. But now, probably because of the lack of fish, I have very
large numbers diving beetles and water boatmen on the surface - which I
would guess would eat any larvae.

I would rather not have fish cos I don't want have to have pumps and filters
etc. Anyone any experience of how well my predatory insects might control
mosquitoes?

thanks

Davy

I've got oodles of dragonflies. They just came, I didn't do anything
special. I have no fish, but green, gold, blue, red, black,
combinations, dragonflies of all sizes and colors, you name it, it's
there. The actual dragonflies keep any flying mosquitoes or other
things in check. Their nymphs seem to control any larvae, I've never
seen any mosquito larvae here, and I'd think a pond in northern
Florida would be an ideal spot for them. There are also "mosquito
dunks" (Bacillus thuringiensis) that you can get from a number of
places. I got a bunch when I moved here (expecting a whole bunch of
mosquitoes to control -- I have three ponds) but haven't found them
necessary. It may be the dragonflies, but then again it may be the
frogs, or perhaps the water snake just scares them away. But I really
think it's the dragonflies.
--
Galen Hekhuis
I may have mispoken