Clerodendrum yellow mosaic

Begomovirus clerodendronflavi is a plant pathogen belonging to the genus Begomovirus within the Geminiviridae family. It is responsible for causing significant viral infections in plants, characterized by persistent symptoms that impact the health and aesthetic value of ornamental species.

The primary host for this virus is the Clerodendrum genus. As a systemic disease, the virus spreads through the plant's vascular tissues, interfering with physiological processes such as photosynthesis and nutrient translocation, which eventually leads to the decline of the host plant.

Symptoms are typically manifested as distinct yellow mosaic patterns, chlorotic spots, and mottling of the leaves. In more severe stages of infection, plants may exhibit stunted growth, leaf curling, and overall distorted morphology, significantly reducing their ornamental potential.

Transmission of Begomovirus clerodendronflavi is mediated by insect vectors, most notably the whitefly (Bemisia tabaci). The virus is acquired by the insect during feeding and subsequently transmitted to healthy plants, making the control of vector populations essential for limiting the spread of the disease.

Effective management strategies focus on preventing the introduction of the virus into clean nursery stocks. Key approaches include maintaining strict sanitation protocols, removing infected plants promptly to serve as inoculum sources, and implementing robust chemical or biological control measures against whiteflies to interrupt the transmission cycle.