Like has already been said, it doesn't take standing water to bread mosquitoes, here is my opinion
90% of mosquitoes come from Larvae hatched out of the
water, but spend most of there short life living in or by grass, mulch, or wooded lots
Some of the mosquito companies will do a good at keeping them knocked down, some will give you just enough material so you have to call them back, which is how they make there money, service calls
Bifenthrin is a insecticide pest control companies use to control pests including termites
It comes in a Granular form, that is easy to spread with your average cheap lawn spreader, application rate is 2.5lbs/1000 sqft, and it is available in 25 and 50lb bags, normal cost should be around $1.25 per lb
now here's the best part, one application lasts about 30 days, and it will control mosquitoes, fleas, ticks, worms, fire ants, large and small ants of any kind, bees that nest in the ground