Have you tried a CO2 mosquito trap?
miesposo fumigates the garden occasionally, i will look for the bottle to check what he uses. it's mixed with water and sprayed from a small pump. no ill effects on dogs who spend all the time in the garden nor cats who go in and out.
as it seems the mosquitos love me.
We shipped down something called a Mosquito Magnet, might be what that is????? Has liquid and CO2 cartridges, runs on propane. Haven't tried it yet.
www.mosquitomagnet.com.
I have a similar one, new, in the box, unused.
Do it yourself mosquito trap as provided by Mr. Bill Clarke on youtube: https://www.youtube.com/watch?v=qn1Uu00Ax5g