I am curious as to what it would look like. I have always had a feeling that it might not be as easy to see.
Interesting and thanks to both of you. My rugosa Roseraie de i'hay she does indeed have crazy growth habits. Many years ago she had cane that grew in circles about 3 circles. Thought it a goner for sure. I cut it down to the ground and waited she has not been sick in all of the years since. I have just always had a feeling that rrd would be hard to spot on her. Also curious that I never have heard anyone mention a rugosa being sick. I'm not thinking it is resistant just curious. Thanks again