" Dan" wrote in message
...
Hi,
I used to use the spuds that were bought for eating that had got a bit
old. Then I got a sort of blight. The young spuds turned into a sort of
foul smelling bag of milky fluid in the ground. Not only ruined that
planting, but other attempts to plant in the same area. I'd stick to seed
potatoes.
Cheers,
Dan

i've had that happen from a purchased seed potato :-) (unbelievably foul,
isn't it?)

even if a potato does not commence life diseased, they can pick things up
from the soil (or elsewhere) once planted, sadly. otherwise, every potato
crop would be magnificent & there would be no diseased potatoes anywhere!!

to the o.p. i'd say use seed if you want a particular kind, and they are
surely better (not to mention much cheaper than the retail price for eating
potatoes) but honestly, grocer's potatoes are fine too, especially since it
is a useful thing you can do with them if they've greened or sprouted while
you weren't looking.
kylie