Other symptoms to look for:
- Brown decay near the stem, at or near the soil's surface.
Viral Diseases (Rose Mosaic)
The most common of the viral diseases, Rose Mosaic symptoms are yellow, staggered patterns on the leaf. These patterns frequently look like yellow electrical streaks or veins. Some authors suggest Rose Mosaic may not be fatal to the plant, and that most of the roses in the U.S. were infected with the disease and showed few detrimental effects as of 1970. Other authors, however, document Rose Mosaic as a cause for bloom distortion, reduced flower production and size, reduced plant vigor, early defoliation, and susceptibility to winter damage.
Other symptoms to look for:
- Yellow streaks or "lightening" patterns on leaves.
Treatments:
- None.
Over the past several weeks we have looked at a variety of reasons for leaves turning yellow. Hopefully, the next time your rose's leaves turn yellow, you will be able to refer to these articles for assistance.