Seasonal transmissibilty of strawberry latent ringspot virus by Xiphinema diversicaudatum

Abstract

The ability of Xiphinema diversicaudatum to transmit strawberry latent ringspot virus in different seasons was tested in the period November 1982-0ctober 1984. Four nematode populations from Borgo d'Ale, in the province of Vercelli, were equally efficient as virus vectors. The maximum rate of transmission occurred in October and November and transmission was nil in December 1982 and January 1983, in June and July 1983, in March and April 1984 and in July and August 1984. This trend in transmission is considered to be related to seasonal temperatures. There was no correlation between the recovery of nematodes at the end of each transmission test and the rate of transmission.