Solanum lapazense begomovirus

Begomovirus solanumlapazense is a viral plant pathogen belonging to the genus Begomovirus and the family Geminiviridae. Characterized by a single-stranded DNA genome, this virus acts as a systemic pathogen that disrupts the metabolic processes of its host plants. By hijacking cellular machinery, it effectively prevents proper growth and development, leading to reduced yield and poor crop quality.

This virus primarily targets plants within the Solanaceae family. Common crops such as tomatoes, peppers, and potatoes are highly susceptible to infection. The pathogen is widespread in regions where host plants and insect vectors coexist, making it a significant concern for both professional agricultural producers and home gardeners alike.

The infection manifests through several distinct symptoms:

• mosaic patterns and yellowing of the foliage;
• severe curling and twisting of leaves;
• stunting of the entire plant;
• reduced flower production and flower abortion;
• significant yield loss due to underdeveloped or deformed fruits.

The transmission of this virus is primarily mediated by insect vectors, specifically the whitefly (Bemisia tabaci). The insect acquires the virus while feeding on an infected plant and subsequently transmits it to healthy plants. Warm, humid conditions are favorable for the rapid proliferation of whitefly populations, which accelerates the spread of the virus throughout the crop field.

Managing this disease requires a strict integrated pest management (IPM) strategy. Key preventive measures include the use of virus-free seeds and seedlings, as well as the implementation of physical barriers like fine mesh screens in greenhouse environments to exclude whiteflies. Regular monitoring and the application of appropriate insecticides help suppress vector populations. Eliminating host weeds in and around the fields is essential to break the infection cycle and protect vulnerable crops.