Here's what I did today. Mowed three properties in the morning, then went and sprayed three more properties that I have (sold them Mosquito Spray Program). I'm using a solo backpack sprayer (4 gal, Handle Pump) that's dedicated to Weed Barrier, nothing else. Mixing 6oz Weed Barrier / 6 oz canola oil / 1 oz palmolive soap with 4 gallons of water. Covers roughly 1 gal / 2,500 sq/ft (I know... I'm going a little stronger than recommended). Charged all 3 properties $42.00 (roughly $10.50 gal) with follow up spray in 2 weeks for $36.00 and monthly spray after that for $36.00. Took me 30 minutes or less on all three lawns, plus mixing for the next one. Weed Barrier - $107 (shipping included) Canola Oil & Palmolive - $5 Water - No one's charged me yet. 84 gallons of mix = roughly $775 or 21 treatments of 10,000 sq/ft I sprayed my yard and one of my neighbors yard last week (neighbor lives on a river). Mowed both properties this week and no mosquitos on me at all. Ate dinner on my porch tonight, no mosquitos, went next door and they swamped me. Seems to be working well, we'll see if I have any callbacks next week.