Solanumhanoiense begomovirus

Solanumhanoiense begomovirus is a viral pathogen classified within the Begomovirus genus of the Geminiviridae family. This virus causes systemic infections in plants, characterized by significant physiological disruption, growth retardation, and reduced yield quality. As a DNA virus, it relies on complex interactions with the host plant to replicate and spread throughout the vascular system.

The primary hosts of this pathogen are members of the Solanaceae family, with significant economic impact observed in crops such as tomatoes and peppers. The virus is capable of infecting not only cultivated species but also various wild weeds that serve as asymptomatic reservoirs, facilitating the survival of the pathogen between growing seasons and its transmission to new crops.

The symptoms of infection often include severe chlorosis, mosaic patterns on foliage, leaf curling, and stunted plant height. As the infection progresses, the interveinal tissue may turn yellow, and the development of reproductive organs is significantly hampered, leading to deformed or undersized fruits that lack market value. Early-stage infection is particularly damaging, often resulting in complete crop failure.

The virus is transmitted by the whitefly (Bemisia tabaci) in a persistent, circulative manner. Once the insect acquires the virus during feeding, it remains capable of transmitting it for the rest of its lifespan. Environmental conditions that favor the proliferation of whiteflies, such as high temperatures and low humidity, are major drivers for the rapid spread of the disease within greenhouses and open fields.

• Rigorous monitoring and control of whitefly populations using systemic insecticides.
• Deployment of physical barriers, such as insect-proof netting in greenhouses.
• Sanitation protocols, including the removal of infected host plants and nearby weed reservoirs.
• Implementation of crop-free intervals to break the virus-vector cycle.
• Utilization of resistant or tolerant cultivars developed for specific regions.