Results 211 to 220 of about 1,055 (251)
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Control of powdery scab of potatoes with chemical seed tuber treatments
New Zealand Journal of Crop and Horticultural Science, 1994Abstract Powdery scab, caused by Spongospora subterranea (Wallr.) Lagerh. f. sp. subterranea Tomlinson, has become an increasingly important problem on potatoes grown in New Zealand in recent seasons.
R E Falloon, A R Wallace, J D Fletcher
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Powdery Scab of Potato: A Diagnostic Guide
Plant Health ProgressPowdery scab, caused by Spongospora subterranea, is a soil- and tuber-borne disease of potato. The fungus-like protozoan pathogen can be found around the world and in almost every large potato-producing state across the United States. Initial signs of infection in the eyes and lenticels of tubers are slightly sunken, purple-brown lesions. When a tuber
J W Woodhall +2 more
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Pest Management Science
Abstract BACKGROUND Differentiating between potato common scab, powdery scab, and the physiological disorder of enlarged corky lenticels is challenging due to their similar visual symptoms.
Teng Liu, Jialin Yu, Utpal Handique
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Abstract BACKGROUND Differentiating between potato common scab, powdery scab, and the physiological disorder of enlarged corky lenticels is challenging due to their similar visual symptoms.
Teng Liu, Jialin Yu, Utpal Handique
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Effect of Irrigation on Powdery Scab of Potatoes.
Australasian Plant Pathology, 1981PA Taylor, SP Flett
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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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