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No-Spray Roses for the Southeastern United States

Tables of Disease Resistant Roses

Below are two tables based on tests of 136 varieties of roses conducted by the University of Tennessee Extension with support from the US Dept of Agriculture. The results are based on specific criteria; roses with superior resistance were those roses with less than 2% foliage infected with either blackspot or cercospora leaf spot and are considered no-spray roses. Roses rated moderately resistant (less than 10% foliage infected) may need limited spraying to maintain clean folage. These roses are listed in Table 1. A second table lists roses which are tolerant of disease. These roses are susceptible to Black spot and/or Cercospora leaf spot and may defoliate, while blooming well all summer. Roses were not sprayed for disease during the trial period which was conducted over a three year period.

Table 1 - Resistant and Moderately Resistant Roses
Rose Cultivar Resistance Type Fragrant
Carefree Sunshine MR Shrub Slightly
Fiesta MR Shrub  
Golden Eye R Shrub Slightly
Hansa R Shrub Very
Homerun MR Shrub  
Knock Out R Shrub  
My Girl R Shrub Slightly
My Hero MR Shrub  
Palmengarten Frankfurt MR Shrub Slightly
Pink Knock Out R Shrub  
Super Hero MR Shrub  
White Dawn, Climber R Climber  
Wild Spice MR Shrub Very
Wild Thing MR Shrub  
Wildberry Breeze MR Shrub Very
    
Table 2 - Tolerant Roses
Rose Cultivar Type Fragrant
About Face Grandiflora  
Belinda's Dream Shrub Slightly
Bonica Shrub  
Carefree Delight Shrub  
Crystal Fairy Shrub  
Fairy Queen Shrub  
Lovely Fairy Shrub  
Snowcone Shrub  

Picture of Blackspot Picture of Cercospora leaf spot
Blackspot from No-Spray pamphlet. Cercospora leaf spot from No-Spray pamphlet.

The trials were conducted under the direction of James Mynes, Tennessee Agriculture Experiment Station (TAES); Mark Windham, TAES; Alan Windham, University of Tennessed Extension; Cecil Pounders, USDA Agricultural Research Service (USDA ARS) and James Spiers, USDA ARS. Our thanks to Mark Windham for providing the information to display these tables and to all those who helped conduct the trials.