EPPO Global Database

Potato yellow dwarf virus(PYDV00)

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Leaves of Chrysanthemum leucanthemum var. pinnatifidum showing symptoms produced by the form of PYDV which is transmitted by Agallia constricta (this form is also called constricta yellow dwarf virus or CYDV).

Courtesy: L.M. Black (US).

Leafhopper vectors of PYDV; upper row: females, lower row: males. Species (from L to R): Aceratagallia sanguinolenta (SYDV vector), Agallia constricta (CYDV vector), Agalliopsis novella (transmits neither virus).

Courtesy: L.M. Black (US).

Potato plant stunted by Potato yellow dwarf virus (PYDV) infection.

Courtesy: APS, St Paul (US).

Later symptoms in potato showing dwarfing and apical yellowing as it often appears in the field.

Courtesy: Cornell University (US).

PYDV infection showing severe cracking and malformation of potato tubers.

Courtesy: Cornell University (US).

PYDV infection showing severe internal necrosis, cracking and malformation of potato tubers.

Courtesy: Cornell University (US).