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ANSES explained that the virus mainly infects tomatoes (Solanum lycopersicum), and other plants in the Solanum genus, such as nightshade and potatoes, are also considered likely hosts. The mite Aculops lycopersici is suspected of playing a vector role, although mechanical or seed transmission has not been demonstrated. Symptoms on fruit generally affect between 2% and 10% of plants, and can reach up to 20% depending on growing conditions. It causes severe discoloration and deformation, rendering it unmarketable. Since symptoms do not appear on leaves and only manifest on fruit late in production, it is difficult to implement timely management measures such as removing infected plants or controlling the suspected vector spider mite. The economic consequences can be significant, as seen in countries like Italy and Spain. Given the recent identification of this virus, no resistant tomato varieties have been documented, and varietal susceptibility remains unstudied.
