forget the propane traps. i had one and it was not effective. The propane foggers also were minimslly effective. Go to a website "bugspray.com" they have a wealth of honest information on all pests. i learned to control mosquitoes here. i use a Solo mist fogger (much like a backpack blower) you can fog an acre in minutes. I use a mix of pyrethrin (quick kill), permethrin (residual long term) and Nylar (an larva gtowth inhiibitor) i spray every 3 weeks. incredibly effective. With a pond, i would add some other growth regulators that they sell. All this is clearly explained on their website. they sell all these products. I recommend them highly (and i have no association with them) i think they are in Georgia. The fogger is expensive but high quality. The chemicals are inexpensive, except the Pyrethrin. But it only takes a little (1 or 2 oz per gallon) and 3 gallons of spray easily does my whole yard. This is same fogger many companies use and charge up to $100 per visit. Mine works so well, that my neighbors pitch in the cost of chemicals and i spray their yards. I now can go outside at night and never get biten i hate wearing repellant and using cittonella. This method works, i guarantee! Bugspray.com is a great resource. I've learned about whiteflies, cave crickets,bedbugs, mice, flying squirrels in attics, and even beavers. And bought chemicals and traps for all those pests from them Sent from my iPhone using TractorByNet