Incidence and severity of powdery scab on potatoes in Pennsylvania

Barbara Jane Christ, R. J. Weidner

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Studies were conducted in Potter Co., Pennsylvania to investigate the effect of powdery scab (Spongospora subterranea) on five potato cultivars (Norchip, Rosa, Kennebec, Katahdin, and Monona) at two planting dates. Soil temperature was within the range of 15-18 C and soil moisture was within 15-19% based on dry weight throughout the season. The effect of planting date was significant at each disease assessment, except for the severity on the fourth assessment. By the end of the season, incidence of scab was 66% or more for all cultivars. Rosa, Kennebec and Katahdin had a greater scab incidence over both planting dates and a greater severity at the first planting date than Monona and Norchip.

Original languageEnglish (US)
Pages (from-to)583-588
Number of pages6
JournalAmerican Potato Journal
Volume65
Issue number10
DOIs
StatePublished - Oct 1 1988

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planting date
potatoes
incidence
Rosa
Spongospora subterranea
cultivars
soil temperature
soil water

All Science Journal Classification (ASJC) codes

  • Plant Science

Cite this

Christ, Barbara Jane ; Weidner, R. J. / Incidence and severity of powdery scab on potatoes in Pennsylvania. In: American Potato Journal. 1988 ; Vol. 65, No. 10. pp. 583-588.
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Incidence and severity of powdery scab on potatoes in Pennsylvania. / Christ, Barbara Jane; Weidner, R. J.

In: American Potato Journal, Vol. 65, No. 10, 01.10.1988, p. 583-588.

Research output: Contribution to journalArticle

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