I see they are up under some evergreens that have shallow roots. Remove half of the
chips as the evergreens drop lots of needles. Remove the bad leaves and I know others will scream but give it a lite feeding of rose food. Down here in SW WA state we have had to deal with the same issues when the neighboring trees were there. When they removed them the Rhodie we have took off! But the recent snow and ice have beat it down again.
