Sweetpotato virus disease

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Acronym: SPVD


SPVD-affected plant (left) showing small, pale green misshapen leaves with a  normal plant (right) (R. Gibson).



Diagnostic summary

  • What you see on plants

   - severe stunting.

 - leaves are small and narrow (straplike), often with distorted edge.

- puckering, vein clearing, and mottling may occur on leaves. The mottling is chlorotic so that the whole plant may appear pale.

  • Disease complex caused by sweetpotato chlorotic stunt virus (SPCSV) and the  aphid-transmitted potyvirus sweetpotato feathery mottle virus (SPFMV).

  • Found throughout the tropics worldwide.

Disease type

Economic importance

Geographical distribution


Biology and ecology

Host range

Detection and inspection



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