Q&A – What is the problem with my rose bush?
Question:
A growth is sucking the life out my knockout rose. The growth is deep plum in color. There are no thorns the stems are hollow, and it grows small funny shape roses, sometimes a whole different color. If I don't continuously cut off the growth it will kill my bush.
Answer:
This is rose rosette. It is not curable and the plant should be immediately dug up and disposed of in the trash. It should not be composted. Rose rosette is a virus transmitted by an eriophyid mite. The disease can be identified by elongated shoots and red coloration of the leaves. Sometimes the new growth has many closely-spaced thorns. There is no cure for the disease, but research is ongoing.
Related Videos:
Basic Rose Care
Rose Bush Pruning
Planting Potted Roses
Related Resources:
Rose Rosette Disease
Frequently Asked Question About Rose Rosette Virus
February 6, 2021
A growth is sucking the life out my knockout rose. The growth is deep plum in color. There are no thorns the stems are hollow, and it grows small funny shape roses, sometimes a whole different color. If I don't continuously cut off the growth it will kill my bush.
Answer:
This is rose rosette. It is not curable and the plant should be immediately dug up and disposed of in the trash. It should not be composted. Rose rosette is a virus transmitted by an eriophyid mite. The disease can be identified by elongated shoots and red coloration of the leaves. Sometimes the new growth has many closely-spaced thorns. There is no cure for the disease, but research is ongoing.
Related Videos:
Basic Rose Care
Rose Bush Pruning
Planting Potted Roses
Related Resources:
Rose Rosette Disease
Frequently Asked Question About Rose Rosette Virus
February 6, 2021