I have a cat and which is a fiest hunter and also neighbors cats too, they havnt able to get a guppy out of my pond

Or you can just add a few female betta fish in there (I have one in my nature pond where I dont have any pump, only standing water and plants) But since you pond is so large, you will be fine with a few fish, they will not be easy catch

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I was thinking I would rely on all other critters for controlling the mosquitoes for my nature pond but one day when I saw 100000+ newly hatched little mosquitoes babies I freaked out and went and got a beta and the next day all were gone and I have not seen anymore. I even used the mosquitoes dunk, not helping, the dragon fly larvae, helped but cant compete with the overwhelm number of the larvae.
And my son's legs looks like the picture John posted, poor him
guppy/mosquito fish/betta, those will help with no maintenance from your part.
I know you dont want fish, but when you see the baby mosquitoes, do think about them
