My first friend told me that a bunch of berries have been more recently included in this list - the raspberry and blueberry bushes were hence jokingly referred to as trayfberries. Is this more of a regional thing or is it everywhere? How many people hold to it? Are maschgiach (sp?) that lacking for work that they need their realm expanded, or is there another reason to expand proscripted fruits and vegetables after many hundreds of years of them being fine?