Hi Paul,
Luckily my italian plum tree seems to be doing well this year. The
problem with your leaves curling could be a fungus. It is probably too
late to treat immediately, but either this Fall (right after leaf fall)
or in
Spring (just before buds open) spray using a lime-sulfer chemical or
a fungicide with chlorothalonil. The holes could be an insect problem.
You did not mention if you did any spraying this season. If not, you
should start a regular spray schedule. At this point, you can use a
general 'orchard spray', which is both a fungicide and an insecticide.
You did not mention any problems with the fruit. A more serious
problem would be plum curculio, which shows up as crescent shaped
wounds on the fruit. That's a nasty one, so I hope you don't have it.

Sherwin Dubren

paul wrote:

I have a plum tree, actually an italian prune tree. I have noticed
that the leafs are starting to curl up. Some of them have little
holes in them. Does anyone know what might be doing this? I could
send a picture if it would help.

Thanks
Paul