>   I have noticed that, since irradiation, avocadoes last hardly any time
>at all, and they are picked too early to have any decent flavor. One very
>definite bad thing about irradiation is that I can no longer start an
>avocado plant from an avocado seed.

what is your source ?whitch avocados are irradiated ?

i have ton of avocados plants growing in my garden so at least the organic
ones that i buy are not irradiated. i  had the impression that only avocados
coming from mexico had for sure to be treated in one way or an other to
cross the border.
Do you have more information?.
jean-claude