Final diagnosis


Tobacco necrosis virus (TNV)

Various forms of surface necrosis on potato tubers caused by the <b><i>Tobacco Necrosis Virus</i></b> (TNV): blisters, depressed black-brown circular spots that develop into rot and star-shaped scabby lesions.
Various forms of surface necrosis on potato tubers caused by the <b><i>Tobacco Necrosis Virus</i></b> (TNV): blisters, depressed black-brown circular spots that develop into rot and star-shaped scabby lesions.
Various forms of surface necrosis on potato tubers caused by the <b><i>Tobacco Necrosis Virus</i></b> (TNV): blisters, depressed black-brown circular spots that develop into rot and star-shaped scabby lesions.
Various forms of surface necrosis on potato tubers caused by the <b><i>Tobacco Necrosis Virus</i></b> (TNV): blisters, depressed black-brown circular spots that develop into rot and star-shaped scabby lesions.