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Andy Robinson

Potato Extension Agronomist

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Potato Tuber Viruses: Mop-top Management

The potato mop-top virus (PMTV) is spreading throughout the potato-growing regions in the U.S. Managing PMTV is difficult. No tests for the virus are required in the U.S. seed certification regulations to regulate PMTV. The most effective way to protect potato production is by selecting cultivars that possess tolerance to PMTV tuber necrosis. No commercially available potato cultivars are completely resistant to PMTV, but recent data indicates there are various tolerances to PMTV.
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