Grapevine leafroll disease occurs in all major grape-growing areas. Several Grapevine leafroll associated viruses (GLRaVs) have been shown to be transmitted by mealybugs. Nine mealybugs have been reported as vectors of GLRaV-3 although detailed characterization of GLRaV-1 vectors transmission is lacking. The presence of GLRaV-1 and Planococcus citri in italian vineyards made the study of transmission necessary. Acquisition and transmission of GLRaV-1 by all instars development of Planococcus citri represent the object of this research. The present study showed Pl. citri as an effective vector of GLRaV-1, infact all instars of development were able to acquire and transmit virus. Moreover, P. citri third instar showed to lose their infection stage after molting.
Acquisition and transmission of GLRAV-1 (Grapevine leafroll associated ampelovirus 1) by Planococcus citri (RISSO) (Hemiptera pseudococcidae)
CONTI, BARBARA;PANATTONI, ALESSANDRA;TRIOLO, ENRICO
2009-01-01
Abstract
Grapevine leafroll disease occurs in all major grape-growing areas. Several Grapevine leafroll associated viruses (GLRaVs) have been shown to be transmitted by mealybugs. Nine mealybugs have been reported as vectors of GLRaV-3 although detailed characterization of GLRaV-1 vectors transmission is lacking. The presence of GLRaV-1 and Planococcus citri in italian vineyards made the study of transmission necessary. Acquisition and transmission of GLRaV-1 by all instars development of Planococcus citri represent the object of this research. The present study showed Pl. citri as an effective vector of GLRaV-1, infact all instars of development were able to acquire and transmit virus. Moreover, P. citri third instar showed to lose their infection stage after molting.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
