Begomovirus sidaciliaris

Begomovirus sidaciliaris is a viral pathogen belonging to the genus Begomovirus and the family Geminiviridae. The virus is primarily characterized by its reliance on insect vectors for transmission, with the whitefly Bemisia tabaci acting as the main agent that spreads the pathogen between host plants during the feeding process.

The host range of this virus primarily includes members of the Malvaceae family, notably Sida ciliaris. Because the virus can persist in weed populations throughout the off-season, these plants serve as a crucial reservoir for the disease, facilitating the reinfection of cultivated crops when the growing season begins.

Symptoms of the infection typically manifest as foliar mosaic patterns, yellowing between the leaf veins, and significant curling or crinkling of the leaf blades. Affected plants often exhibit stunted growth and reduced vigor, which directly impacts the overall health and economic yield of the affected vegetation.

The development and spread of Begomovirus sidaciliaris are highly dependent on environmental conditions that favor the proliferation of whitefly populations. Warm temperatures, adequate humidity, and the presence of abundant host weeds create the perfect conditions for the rapid multiplication and subsequent transmission of the virus across agricultural fields.

Preventive strategies and control measures are essential to mitigate the impact of this viral disease, focusing largely on integrated pest management:

• Regular weeding to remove reservoir hosts of the virus from the surroundings.
• Strategic application of insecticides to keep whitefly populations below the economic injury level.
• Implementation of crop rotation to break the cycle of viral persistence.
• Utilization of resistant crop varieties and clean propagation materials to prevent early-stage infections.