A program was developed after an increasing amount of rose rootstock varieties became infected with viruses that were being transmitted to the cuttings during propagation. Recommendations are given by the author on how to approach the rose virus problem.
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December 1966 Vol. 10, Issue 2 Page 3
J.A. Milbrath R.G. Harris Department of Botany and Plant Pathology Oregon State University, Corvallis, OR