Tobacco Rattle virus

TRV

Symptoms

• Small, necrotic spots and/or necrotic circles in the tuber known as spraing
• Different cultivars react differently with regards to symptom expression
• Circles can also occur on the skin

Infection and spread

• Nematodes (Paratrichodorus spp. and Trichodorus spp.)
• Broad host spectrum including weeds

Possible confusion with

• Spraing caused by potato mop-top virus (PMTV)