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2018 ASHS Annual Conference

A Survey of the Deep South for Rose Rosette Virus and Its Eriophyid Mite Vector

Thursday, August 2, 2018
International Ballroom East/Center (Washington Hilton)
Katherine Solo, University of Tennessee, Knoxville, TN
Sara Collins, University of Tennessee, Knoxville, TN
Ronald Ochoa, Beltsville Agricultural Research Center, Beltsville, MD
Gary R. Bauchan, USDA/ARS, Beltsville, MD
Alan Henn, Mississippi State University, Mississippi State, MS
James Jacobi, Alabama Cooperative Extension System, Birmingham, AL
Jean Williams-Woodward, University of Georgia, Athens, GA
Reza Hajimorad, University of Tennessee, Knoxville, TN
Frank Hale, University of Tennessee
John Wilkerson, University of Tennessee, Knoxville, TN
Alan Windham, Ph.D., University of Tennessee, Nashville, TN
David H. Byrne, Texas A&M University, College Station, TX
Mark Windham, University of Tennessee, Knoxville, TN
Across the United States, rose rosette disease has killed thousands of roses. The eriophyid mite, Phyllocoptes fructiphilus, vectors the causal agent, Rose Rosette Virus (RRV), for this disease. Parts of the southeastern United States have remained free of the disease, except for disease introductions that were eradicated. A survey of Alabama, Georgia, and Mississippi plots (n = 204) have revealed the southeastern border of RRV. The presence of RRV in symptomatic samples was confirmed by RT-PCR. Samples were also collected at each plot for detection of eriophyid mites, specifically for P. fructiphilus. These mites were identified through isolation, staining, and light microscopy. Mites were found to be generally distributed throughout the Deep South, however many of these sites contained eriophyid mites that were not P. fructiphilus. The reasons for the lack of RRV and low populations of P. fructiphilus in the southern regions are unknown.
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