Increased Susceptibility to the Mite Vector (Phytoptus ribis Nal.) caused by Infection with Black Currant Reversion Virus
REVERSION virus of black currant (Ribes nigrum L.) is transmitted by the gall mite Phytoptus ribis Nal. It is now known that the relationship between virus and vector is unusually complex and that infection with reversion virus increases the host's susceptibility to mites. This was demonstrated by exposing healthy and virus-infected bushes of the variety `Wellington XXX' to mites spreading from adjacent bushes.