I've finally cut back most of the October snow storm damage and am looking for advice on further pruning. A few of the trees are very misshapen now and I'm wondering when would be the best time prune back to shape them.

For instance an old Flowering Magnolia lost one of 4 trunks with another loosing most of it's major branches. It's now lost about 2/3 of it's leaves. What would be the least stressful time to prune this already stressed out tree?

I am not sure but hope someone does

If it's already dying do it now. Anytime there is a break you should trim right away
Regular pruning is best done late winter.

Thanks Jennifer. The broken limbs are not the question as they've mostly been dealt with. What I'm concerned with is pruning those limbs which were not damaged. Will it further stress the trees? i.e. Would it be better to deal with them in 2013?

If it's just to shape the tree wait till late winter

Thanks Jen.

You're very welcome