Results 211 to 220 of about 1,112 (251)
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2022
Because there are very few effective ways to manage the disease, it’s crucial to know how to minimize the risk of an outbreak. This five-page bulletin discusses the signs and symptoms, the pathogen’s disease cycle and the management options available.
Whitworth, Jonathan +6 more
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Because there are very few effective ways to manage the disease, it’s crucial to know how to minimize the risk of an outbreak. This five-page bulletin discusses the signs and symptoms, the pathogen’s disease cycle and the management options available.
Whitworth, Jonathan +6 more
openaire +1 more source
Incidence and severity of powdery scab on potatoes in Pennsylvania
American Potato Journal, 1988Studies 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.
B. J. Christ, R. J. Weidner
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Screening for resistance to powdery scab disease of potatoes.
Australian Journal of Experimental Agriculture, 1986Powdery scab disease of potatoes, caused by the fungus Spongospora subterranea, has developed as an important disease of potatoes in Victoria because of changes in agronomic practices, such as increased supplementary irrigation, earlier planting and increased use of the highly susceptible cultivar Kennebec.
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Resistance to powdery scab of seedling progenies ofSolanum tuberosum
Potato Research, 1991Tubers from individual seedlings of nineteen progenies involving eleven parental cultivars were tested for resistance to powdery scab over 2 years in artificially infested soil beds. There was a significant correlation between the mean resistance of a progeny and the phenotypic resistance of its parents.
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The effect of irrigation and nitrogen on powdery scab and yield of potatoes
Potato Research, 2002Powdery scab, caused by the fungusSpongospora subterranea, has developed in the Cappodocia region of Turkey because of changes in agronomic practices, such as excessive irrigation and nitrogen fertilizer use and growth of highly susceptible cultivars. The most suitable irrigation and nitrogen application levels were established to maintain powdery scab
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The Control of Scab and Powdery Mildew of Apple with a Reduced Number of Sprays
Plant Pathology, 1975SUMMARY Apple scab was effectively controlled with either benomyl (0·025 per cent a.i.), thiophanate‐methyl (0·05 per cent a.i.) or carbendazim (0·025 per cent a.i.) applied at 21‐day intervals. Where powdery mildew was a problem, it was necessary to interject into this programme additional sprays of either binapacryl (0·05 per cent a.
R. T. BURCHILL, M. E. COOK
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Effects of irrigation regimes on powdery scab disease and yield of potatoes
Australian Journal of Experimental Agriculture, 1986The period of susceptibility of potato tubers to powdery scab (Spongospora subterranea) was studied by inoculating potato plants with spores, or by watering plants in infested soil, at different stages of plant development in greenhouse conditions. Maximum susceptibility began about 1 week before the stage when 50% of stolons had swollen to at least 5 ...
PA Taylor +3 more
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Phytocytokine StPep1-Secreting Bacteria Suppress Potato Powdery Scab Disease
Phytopathology®Powdery scab is an important potato disease caused by the soilborne pathogen Spongospora subterranea f. sp. subterranea. Currently, reliable chemical control and resistant cultivars for powdery scab are unavailable. As an alternative control strategy, we propose a novel approach involving the effective delivery of a phytocytokine to plant roots by the
Natalia Moroz +4 more
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Evaluation of potato cultivars in the greenhouse and field for resistance to powdery scab
Australian Journal of Experimental Agriculture, 1991The reaction of 10 commercial potato cultivars to infection by Spongospora subterranea was evaluated in the field and in the greenhouse. Micropropagated plants were used in the greenhouse and seed pieces were used in the field. The relative susceptibilities of the cultivars when measured in the greenhouse and in the field were comparable.
RFde Boer, Boer RF De
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