Mild Mosaic

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Infection of Potato virus A appears as light yellow mottling with slight crinkling on potato plants with mild mosaic. Margins of affected leaves may be wavy, and leaves may appear slightly rugose (i.e., rough) where veins are sunken and interveinal areas are raised. Affected plants tend to open up because the stems bend outward. Severity of symptom expression depends on weather conditions, the potato cultivar, and the strain of virus A.

Presence among species

Pathogen Susceptible Host
Potato virus A Solanum tuberosum
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