Dahlia-Ringspot

Latest revision: 
March 2024

See:

Symptoms Several different symptoms may occur when infected by Tomato spotted wilt virus (TSWV) or Impatiens necrotic spot virus such as a yellow-green mosaic, irregular concentric rings, or wavy-line patterns in older leaves. Stunting or leaf distortion does not occur. Necrotic leaf spots, flower color break and tuber decay and/or desiccation have also been associated with TSWV.

Reference Gleason, M.L., Daughtrey, M.L., Chase, A.R., Moorman, G.W., and Mueller, D.S. 2009. Diseases of Herbaceous Perennials. APS Press, St. Paul, MN.