Final diagnosis


Potato leaf roll virus (PLRV)

Stunted yellowing potato plant, foliage with an erect growth habit and mild leaf in-rolling (symptoms of PLRV primary infection). <i><b>Potato Leaf Roll Virus</i></b> .
Yellowing foliage and erect growth habit of the upper potato leaves. <i><b>Potato Leaf Roll Virus</i></b> (PLRV)
Severe in-rolling of the upper leaves associated with purplish discolouration. <i><b>Potato Leaf Roll Virus</i></b> (PLRV)
Numerous superficial necrotic spots (tuber net necrosis). <i><b>Potato Leaf Roll Virus</i></b> (PLRV)
Severe leaf rolling with purplish colouration of leaf edges. <i><b>Potato Leaf Roll Virus</i></b> (PLRV)
In-rolling of the bottom leaves with yellowing of the whole potato plant (symptoms of PLRV secondary infection). <i><b>Potato Leaf Roll Virus</i></b>
Potato foliage erected and clearer on top and leaf rolling from the base related to an infection of the previous year by <i><b>Potato Leaf Roll Virus</i></b> (PLRV).