bberry wrote:

I planted various types of roses over the past few months. Most of the
period was very dry, but the last few weeks have been wet,
culminatring with Tropical Storm Claudette.

Many of my roses have come out of this wet period with yellow leaves
in the lower half but vigorous top growth. Is this something to do
with sudden moisture changes?

How's the drainage where they're planted? And were they well watered
before the rain?