Field Resistance to Rose Rosette Disease as Determined by Multi-Year Evaluations in Tennessee and Delaware

Author:

Windham Mark T.1,Evans Thomas2,Collins Sara1,Lake Juniper A.2,Lau Jeekin3ORCID,Riera-Lizarazu Oscar3ORCID,Byrne David H.3ORCID

Affiliation:

1. Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA

2. Department of Plant and Soil Science, University of Delaware, Newark, DE 19716, USA

3. Department of Horticultural Sciences, Texas A&M University, College Station, TX 77843, USA

Abstract

Rose rosette disease (RRD) caused by the rose rosette emaravirus (RRV) and transmitted by the eriophyid mite Phyllocoptes fructiphilus (Pf), both native to North America, has caused significant damage to roses over the last several decades. As cultural and chemical control of this disease is difficult and expensive, a field trial was established to systematically screen rose germplasm for potential sources of resistance. One hundred and eight rose accessions representing the diversity of rose germplasm were planted in Tennessee and Delaware, managed to encourage disease development, and evaluated for symptom development and viral presence for three years. All major commercial rose cultivars were susceptible to this viral disease to varying levels. The rose accessions with no or few symptoms were species accessions from the sections Cinnamomeae, Carolinae, Bracteatae, and Systylae or hybrids with these. Among these, some were asymptomatic; they displayed no symptoms but were infected by the virus. Their potential depends on their ability to serve as a source of viruses. The next step is to understand the mechanism of resistance and genetic control of the various sources of resistance identified.

Funder

Basye Endowment in Rose Genetics

The American Rose Trust Fund

United State Department of Agriculture

National Institute of Food and Agriculture

Specialty Crop Research Initiative projects

Publisher

MDPI AG

Subject

Infectious Diseases,Microbiology (medical),General Immunology and Microbiology,Molecular Biology,Immunology and Allergy

Reference47 articles.

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3. Olson, J., Rebek, E., and Schnelle, M. (2023, March 01). Rose Rosette Disease. Oklahoma Cooperative Extension Service, EPP-7329. Available online: https://extension.okstate.edu/fact-sheets/print-publications/epp-entomology-and-plant-pathologhy/rose-rosette-disease-epp-7329.pdf.

4. Ong, K., Giesbrecht, M., Woodson, D., and Miller, L. (2023, March 01). Rose Rosette Demystified. Texas A&M AgriLife Ext. Bul. 2015. EPLP-010. Available online: https://agrilifelearn.tamu.edu/s/product/rose-rosette-disease-demystified/01t4x000004OfrrAAC.

5. Managing Rose Rosette in the Landscape—Ideas based on experimental data;Windham;Rose Mag.,2016

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