This documentary about Bees does a great job of going into depth about how the use of pesticides, which is killing our bees, is a symptom of a greater problem, and that greater problem is the way we till, till, till until we change the biological community of the soil--pests are overcome when you establish biological balances, as Dr. Lundgren explains, which would eliminate our need to use neonicitinoids, very toxic to bees. 13% of all our land surfaces are compromised by the use of these agents.
This kind of farming is regenerative, where they are rebuilding biodiversity in the soil. First step is: Stop tilling.
This is discussed starting around the 3 min mark: