Plum tree pruning

I was given a plum tree late winter/early spring last year when a plot holder left our site. It needs some serious pruning and also to be moved this year. The tree is around 10ft tall and the two trunks are a couple of inches thick


Pruning: It has a twin trunk, one needs to be removed and as one side of the tree has fruit and the other has none...that decision has been made for me. I'm happy enough with how to cut it what I am unclear with is "when". All the text I have read suggests that I prune in June to avoid silver leaf disease, but with June being so wet and overcast I wonder if that still holds true?


Moving: I want to move this tree later in the year and plan to root prune first, would it be okay to both prune off one of the two trunks and root prune at the same time?

Steve...