@JLeslie I meant, for the most part, native bees. Bee keepers are doing studies now in the US with Australian bees.
I haven’t heard about Africanized bees, and I doubt anyone cares since they don’t do pollinating and honey making like other bees. And African bees were not brought into the Americas to make honey, I think they were being researched as to their honey and other potentials, and the little buggers escaped!
But I believe all types of bees are being affected by the problem, which is the insecticides being used. The bees leave the hive to find pollen but can’t find their way back to the hive afterwards.