Lime Sulphur is a wonderful fungicide that will kill any overwintering fungal spores and go a long way towards inhibiting next summer's fungal problems. It smells so awful it must be good. Gets rid of lichen, too. A fortnight or more after this, try mineral oil combined with copper . Oil smothers any eggs that will otherwise hatch insect pests in the spring.
Copper is another organic fungicide.
Having cleaned up with these winter sprays, you shouldn't need much else. If you can resist spraying with insecticides, the natural predators in your garden will maintain the balance of nature and you plants will survive and may even thrive. They're kinder on you and the environment Lloyd Chapman Winter 2000 More pictures of Old Roses from Trinity Farm in the Garden Gallery.