David Ellis wrote:
Hi

I have a number of Victoria Plum trees in my garden that are very tall
the first branches start at around ten feet and are very long so it is
impossible to reach the fruit. How severe a prune can give them? and
when is the best time?

You could take off one third without a problem, perhaps more. Prune when
they are dormant, in spring just before budding is good. If the fungus is
prevalent in your area you should spray for peach leaf curl at that time
with one of the copper-based fungicidal sprays.

The question is why are they so tall and leggy, are they in full sun? If
they are reaching for the sun this will be a recurrent problem and they will
not crop well.

David