The Metropolitan Mosquito Control District (MMCD) is asking bee keepers to let them know where their hives are located so they can mark them on field maps and avoid them when treating for adult mosquitoes. MMCD is aware that beekeepers sometimes move their hives to more productive locations, so they’re asking beekeepers to keep in touch. MMCD will work to avoid your hives regardless of where you place them.
Also, the folks at MMCD aren’t the only ones who use insecticides that have the potential to affect bees. If you haven’t already done so, you might want to consider voluntarily registering your hive location with Driftwatch, a free service that lets bee keepers communicate with registered pesticide applicators of all stripes. Start here if you want to register your bees with Driftwatch. https://driftwatch.org/