Boxwood and the drought

Anne, Several of my boxwoods have a good bit of dead leaves. Should I cut the dead part off?

Thanks,
Kay

Anne's response:

If it is just the leaves that are at the base of stems there is no need to prune because that is the oldest growth on the plant. Plants are losing more leaves than usual in the heat and drought this summer. If entire branches are brown remove the branch to an adjoining stem.