Tomato Ringspot
Tomato ringspot virus – ToRSV
Not established in BC. Included so growers and scouts can watch for it. Report a suspected find to the BC Blueberry Council.
Damage
Leaves are cupped and misshapen or elongated and have pale yellow or brown circular spots of 2-5 mm in diameter. Stems may have brown, circular spots of 2-5 mm in diameter. Some shoots may appear normal, others may have misshapen leaves. An infected bush can be completely defoliated.
Disease
ToRSV is spread by dagger nematodes (Xiphinema spp.) from infected to healthy roots in the soil. The virus spreads slowly, causing plant decline in expanding circular patches in the field. It is present in Washington, Oregon and Michigan. It has been detected in BC on raspberries but not on blueberries. Blueberry Virus Surveillance