Tobacco ringspot virus can be a devastating disease, causing serious damage to crop plants. There is no method for treating Tobacco Ringspot, but you can manage it, prevent it, and avoid having it in your garden. What is Tobacco Ringspot Virus? Tobacco ringspot virus is a pathogen that in addition to tobacco can affect several crops including: Blueberry Grapevines Cow peas Beans Peas Clover Cucumber Soybeans While the disease is caused by a virus, the virus is transmitted by dagger nematodes, microscopic worms as well as by tobacco thrips and flea beetles. In commercial farming, this disease can be a big problem for growing soybeans, although grape producers in the northeast also battle tobacco ringspot virus. Reductions in crops can be significant with tobacco ringspot damage. The biggest losses are seen when the seeds you use are heavily infected or when the infection occurs in younger plants. Tobacco Ringspot Symptoms