I'd like to share some advice on viruses.

All roses that are Hybridized originally start out virus free because the transmission of viruses does not transfer through seeds. Even if you cross two roses that each have mosiac virus, the seed you get from the hips will be virus free. Lets say I take a Gold Medal (mother) and cross it with another rose say Peace (father). The bush forms hips, and I harvest the seed in fall and plant them. Every single seed that germinates will be virus free, even if both mother and father have virus. Lets now say I believe this is a great new rose, and I want to have some Rose company sell it for me. This is where the virus enters in. The company I give the bush or cuttings to will then propagate this rose by grafting to an understock. If the understock is infected with a virus, every plant propagated will then be infected unless the company uses either indexed understock, or understock grown from seed. Rooted cuttings taken from the ORIGINAL MOTHER BUSH will be virus free as well as any grafted plants that have used clean understock and budwood from the ORIGINAL MOTHER BUSH.