Rose Mosaic Virus Disease: A Disease Caused by a Virus Complex and Symptoms on Roses and Management Practices

Abstract

Rose mosaic virus disease is one of the most economically important diseases affecting roses, because a single symptomatic leaf can result in the rejection of complete shipments for wholesale or retail rose producers. It continues to be a problem in nursery production and landscapes. This 5-page document discusses the causes, symptoms, and management of this disease. Written by Susannah da Silva, Binoy Babu, Mathews L. Paret, Gary Knox, Fanny Iriarte, Barron Riddle, Matt Orwat, Shawn T. Steed, E. Vanessa Campoverde, and Svetlana Y. Folimonova and published by the UF/IFAS Plant Pathology Department, August 2018. http://edis.ifas.ufl.edu/pp338/

Viral Infection Control in the Essential Oil-Bearing Rose Nursery: Collection Maintenance and Monitoring

“…For all the diversity of viral symptoms, many of them are similar to those caused by other pathogens which makes diagnosis difficult (Figure 2). Based on the articles by various authors, it may be concluded that the most typical and common manifestation of the viral diseases affecting Rosa L. plants is viral mosaic caused by such pathogens as Prunus necrotic ringspot virus, Apple mosaic virus and Arabis mosaic virus [8,39,41,[61][62][63][64][65]. Its hallmark is that the infection has a mono-or mixed nature, that is, it is triggered by a single virus or a group of viruses.…”

“…Its hallmark is that the infection has a mono-or mixed nature, that is, it is triggered by a single virus or a group of viruses. Moreover, manifestations of one or several viruses may be different: chlorotic lines; ringspots; vein clearing and banding; leaf mottling during vegetation; yellow netting and yellow mosaic; oak leaf pattern; leaf distortion and curling; necrosis; flower distortion; flower size reduction; shrinkage in the plant stem at the grafting point [24,26,63,64].…”

“…The disease results in reduced flowering, impaired winter survival, premature leaf fall and increased vulnerability to low temperatures. At the same time some infected plants do not manifest any symptoms at all [26,64].…”

“…According to da Silva et al [64], it is possible to remove the plant parts showing specific symptoms. However, this will not interfere with further progression of pathology since the plant is infected systemically and the signs of infection may manifest themselves on other organs or parts of the plant over time.…”

Rose Virome Analysis and Identification of A Novel Ilarvirus In Taiwan

“…Symptoms associated with RMD are highly variable, depending primarily on rose cultivars, virus agents and environmental factors. Some of the common foliar symptoms include chlorotic line patterns, ring spots, yellow vein banding and puckering, intense yellow spots, mottling and severe distortion [10]. In addition, flower distortion, reduced flower production and flower size, stem caliper at the graft union and reduction in vigor, early autumn leaf drop, lower bush survival rates, increased susceptibility to cold injury and more difficult establishment after transplanting are shown.…”