Blueberry scorch virus

Carlavirus • Betaflexiviridae • Tymovirales • plant viruses • plant diseases • pests-diseases-weeds

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Blueberry scorch virus symptoms: A) blueberry plants with necrotic flowers and leaves, B) close up of necrotic flowers and leaves (click on image to enlarge it)
Author(s): Robert R. Martin, James J. Polashock and Ioannis E. Tzanetakis
Source: Viruses (2012) 4, p.2839

Blueberry scorch virus (BBScV or BlScV)

The virus causes scorch disease of blueberry. The symptoms range from asymptomatic to severe blighting of flowers and young leaves, including twig dieback and plant decline. In addition, infected leaves sometimes show marginal chlorosis or a red line pattern (see illustrations below). In severe cases, the infected plants bear little or no fruit. On the other hand infections may remain latent for many years.

The virus spreads through propagating material and by the aphid Fimbriaphis fimbriata. For management, only planting material from certified nurseries should be used.

Vernacular names
• English:	Blueberry scorch virus scorch disease of blueberry
• Français:	virus de la brunissure nécrotique du bleuet

For a review see Martin et al., 2012.

Blueberry scorch virus symptoms on blueberry leaves: c) line and oakleaf patterns, D) chlorotic leaf margins, E) leaf reddening (click on image to enlarge it)
Author(s): Robert R. Martin, James J. Polashock and Ioannis E. Tzanetakis
Source: Viruses (2012) 4, p.2839