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Symptoms: Symptoms on hosta are shown here. Yellow & green mosaic, ring spots, or line patterns on leaves. Leaves may be stunted, curled, or distorted. Photo by Chad Behrendt |
Viruses on hostas mainly affect the leaves. There are several different viruses on hostas, causing varying symptoms. Some of the most common symptoms are mosaic, line, or ring patterns on the leaves, dwarfing, leaf curling. |
Symptoms: Symptoms on hosta are shown here. Yellow & green mosaic, ring spots, or line patterns on leaves. Leaves may be stunted, curled, or distorted. Photo by Chad Behrendt |
| Causal organism: | Various viruses |
| Over wintering: | In plant material |
| Months of infection: | Growing season |
| Method of dispersal: | Propagation and grafting, rarely vectored by insects or nematodes |
| Infection point: | Leaves & stems |
| Control: | Purchase disease-free plants. Remove virus infected plants. |
| Labeled fungicides | None |
| Comments: | Virus-infected hosta may grow and bloom normally. If infection is severe, plant should be removed and discarded. Laboratory testing is necessary for confirmation of viral infections. |
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