I'm not saying irradiating all your equipment wouldn't work, I'm stating the feasibility of getting it done is unreasonable for someone in my position.
Let' say I buy all new equipment and irradiate everything that would ever come into contact with the bees in the future.
They would still be exposed to EFB as obviously they got it somewhere in the area. A neighbor could have bought a hive from a commercial beekeeper out of state and it died out, from EFB. My hives could have robbed it out and gotten it there, for example. This also goes for OTHER hives in the area.
Let's say I go through this whole process only for my hives to then again, rob out an infected hive, kept or wild.
I think my solution is going to be more genetic. I obviously have a line of hives that is able to keep it at bay -the daughters of an original survivor queen from a cutout.
I surely believe many hives have EFB, like many of us have bacterial infections or virus' - it's how the bees are able to fight it off that's more important to me - cause I doubt the problem is going to go away, even with irradiating everything.
I called up a friend of mine who keeps about 600 hives here in CA. He had never heard of irradiating equipment so it must not be as common a practice as you make it out to be.
And the bees are still here, Almond just bloomed and then we have cherry, apple, plum ,etc etc.