In article , sw
writes

My one globe artichoke has the most amazing dense infestation of
blackfly. While the broad beans are completely clear, with only the
(very) odd confused ant wandering up and down the stems.

It is worth remembering that for useable artichoke production, globe
artichoke plants need to be replaced after 3 or 4 years. The plants can
be left in for ornamental display, but to get really good artichokes,
rooted offsets should be taken from the base in late autumn and new
plants propagated from them. It's also worth remembering that though
globes are relations of the wild thistle and thus real toughies, they
will produce artichokes a lot better in a sheltered spot. Their most
favoured habitat is in the Mediterranean region, but they can grow and
produce quite successfully in UK if given the right care.
--
Alan & Joan Gould - North Lincs.