Robigovirus

Robigovirus is a genus of plant viruses within the family Betaflexiviridae. These pathogens are known for causing systemic infections in various agricultural crops, disrupting normal cellular functions and plant development, which leads to reduced yields and inferior fruit quality in both greenhouse and open-field production systems.

The virus primarily affects a variety of Solanaceous and Cucurbitaceous crops, making it a significant concern for vegetable producers. Typical host plants include tomatoes, peppers, and cucumbers, which can suffer stunted growth and complete yield failure if the infection occurs in the early stages of plant development.

Common symptoms of Robigovirus infection include characteristic mosaic patterns on leaves, leaf deformation, curling, and systemic chlorosis. Infected plants often show reduced internode length and overall dwarfism, alongside poor fruit set and asymmetrical development of the fruit, which significantly diminishes the marketable value of the harvest.

Development and spread of the virus are highly dependent on the presence of insect vectors, such as aphids and thrips, which transmit the virus while feeding. Additionally, mechanical transmission plays a critical role in greenhouse environments, where contaminated pruning tools, clothing, and handling during routine cultural practices allow the virus to jump between adjacent plants.

Management and prevention of Robigovirus rely heavily on integrated pest management (IPM) strategies. This includes the use of virus-free planting stock, regular sanitation of tools with approved disinfectants, strict vector control programs to manage insect populations, and the removal and disposal of any plants exhibiting viral symptoms to prevent further spread within the crop stand.