Begomovirus solanumhsinchuense

Begomovirus solanumhsinchuense is a plant pathogen belonging to the genus Begomovirus within the Geminiviridae family. These viruses are characterized by their bipartite or monopartite single-stranded DNA genome, which relies on the host's cellular machinery for replication and subsequent systemic spread throughout the plant tissues.

The primary hosts for this virus are plants within the Solanaceae family. Significant economic impact is recorded in tomato and pepper crops. The virus has a wide host range, often persisting in wild solanaceous weeds, which serve as inoculum sources for agricultural fields throughout the growing season.

Symptoms of the infection typically include severe leaf curling, yellowing (chlorosis) or mosaic patterns, and stunted growth of the plant. Flowers often fail to set fruit, and any resulting fruits are frequently distorted, undersized, or discolored, rendering them unsuitable for commercial sale.

The virus is exclusively transmitted by the whitefly Bemisia tabaci (tobacco whitefly) in a persistent circulative manner. Once the whitefly acquires the virus by feeding on infected phloem sap, it maintains the ability to transmit the pathogen for the duration of its life, effectively spreading the disease across large areas.

Effective management requires an integrated pest management (IPM) strategy focused on suppressing the whitefly population. Key preventive measures involve:

• Deploying physical barriers like insect-proof netting in greenhouses.
• Implementing strict weed control to eliminate alternative hosts.
• Monitoring whitefly populations and applying targeted insecticides.
• Selecting resistant or tolerant crop cultivars.