I have two climbing roses that were well established when we bought our house five years ago, a yellow and a hot pink. They had no support and had been neglected so I fertilized, pruned and sprayed them, . I got my husband to put up a trellis and the photo below shows how they bloomed last spring. We live in central Arkansas and have had lots of moisture, both snow and rain this winter into spring. I have sprayed the two roses with fungicide when black spot has shown up previously and tried to remove any leaves affected. This spring the canes of one look really sickly and the leaves are showing spots on both of the roses. Should I give up and remove these roses? Are they too far gone? Is there something I can do to revive them?