Call and get no spray.
Talk to neighbors about not spraying/leaving hives alone.


http://umaine.edu/blueberries/factsheets/bees/629-honey-bees-and-blueberry-pollination/

However, if pollination does not occur within two to three days after the flower opens, fruit set is less likely and by 7-8 days becomes improbable. 

2 hives per acre
orient toward morning sun 
protect from wind
not near buildings or roads
access to water

place in center of field 500ft apart
move after 3-4 days