Check out these tips from the U.S. EPA regarding bees and mosquitoes:
Bee Safe with Pesticides. It’s that time of year to start gardening … and if you use pesticides where bees are present, always READ THE LABEL. Be sure you know how to use pesticides or other garden chemicals safely and correctly. More about protecting bees and other pollinators:
Don’t Get Bugged. Mosquito season is almost here. You can help control mosquitos before they become a problem. Regularly drain or change standing water near your home – some mosquitos need only a few tablespoons (!) of water to breed. If you use insect repellents, always READ THE LABEL and be sure follow the directions.
Control ideas: https://www.epa.gov/mosquitocontrol