Here we describe the circulative, nonpropagative mode of transmission of GRBV by the three-cornered alfalfa hopper (Spissistilus festinus). We also noted the the extended acquisition access period compared with other viruses in the family Geminiviridae and marked differences in transmission efficiency between grapevine, the natural host, and snap bean, an alternative herbaceous host.
Flasco et al. (2021) Phytopathology
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