The introduction of invasive species causes damages from the economic and ecological point of view. Interception of plant pests and eradication of the established populations are two management options to prevent or limit the risk posed by an invasive species. Management options generate costs...

Etiological studies of a recently emerged bushy top disease of tobacco in Ethiopia indicated that a ∼4.5-kb dsRNA from infected plants represents an umbravirus, whereas a smaller band (∼0.5 kb) is that of a new satellite RNA. Potato leafroll virus was also consistently associated with the disease....

This paper focuses on the biological and genome characteristics of a member of a new Carlavirus species isolated from a diseased watermelon sample and transmitted by Bemisia tabaci, for which the name Cucumber vein-clearing virus (CuVCV) is suggested.

During surveys conducted in Sudan, during the 2009 summer season, chlorosis and yellowing symptoms were observed on melons and cucumbers grown in open fields. Large whitefly (Bemisia tabaci) populations were also observed. Symptomatic leaf samples were collected and analysed in the laboratory. The...