I need a flea treatment for the yard that will not hurt, bees, rabbits, my lawn or other beneficial insects
Fleas are nest parasites rather than scattered throughout the yard.
The key to flea management is your pets -- comb them often to monitor the flea levels and to remove what you find by flicking into soapy water.
-- Also, use an approved anti-flea product on your pet which you've obtained from your vet
-- plus wash the pets' bedding on regular basis
-- and vacuum frequently.