Divavirus

Divavirus is a genus of viruses classified within the Secoviridae family. These pathogens are known for causing systemic infections in a variety of plants, leading to significant physiological disruptions and structural damage within host plant tissues.

The virus primarily impacts agricultural crops, with particular emphasis on vegetable species from the Solanaceae and Cucurbitaceae families. The pathogen's ability to infect both economic crops and common weeds makes it a persistent threat in agricultural environments.

Symptoms of Divavirus infection typically involve visible mosaic patterns, chlorotic spots, and severe deformation of foliage. Infected plants often exhibit stunted growth, reduced internode length, and poor fruit development, which leads to substantial losses in both yield volume and marketability.

The transmission of the virus occurs via insect vectors, including aphids and whiteflies, which acquire and transmit the virus during feeding. Furthermore, mechanical transmission is a common risk factor when handling plants with contaminated tools or during intensive field operations.

Effective management and prevention strategies are essential to mitigate the impact of Divavirus outbreaks:

• Sourcing certified virus-free seeds and planting material for every season.
• Implementing strict insect vector control programs using targeted insecticides.
• Prompt roguing and destruction of symptomatic plants to reduce the inoculum level.
• Cleaning and disinfecting all agricultural machinery and hand tools between tasks.