If the conditions for the roots are not perfect, the plant will simply abandon part of its root-system. This is probably the most common virus in Kalanchoe. The virus appears to be very widespread in many modern Kalanchoe Hybrids. In most cases there are no visible symptoms. The virus will only show under poor growing conditions, and only in heavily infected plants.
Symptoms are dark green mosaic-like spots on the foliage.
In very severe cases there can be some growth inhibition. To our knowledge there are no immuno-assay tests available. Aphids seem to be vectors for this virus. This variation of Tomato Spotted Wilt Virus can cause a range of symptoms in Kalanchoe. Symptoms sometimes resemble damage from mistakes in cultivation.