Ray from Bartlett, Il writes
Bifen IT will kill any bees that land on the treated surfaces, especially if they are foraging. It offers a 30 day outdoor residual and eradicates over 75 other listed insects. We recommend avoiding spraying on flowering plants or in other areas where pollinators may be active. You should also avoid spraying in the middle of the day when these insects are most active.
Answer last updated on: 07/29/2015