Results 1 to 10 of about 70 (63)
Disease Severity Keys for Powdery and Downy Mildews of Pea, and Powdery Scab of Potato [PDF]
New Zealand Journal of Crop and Horticultural Science, 1995 Abstract Disease severity keys are described and illustrated for powdery mildew ( Erysiphe pisi DC.) and downy mildew ( Peronospora viciae (Berk.) Caspary) of pea ( Pisum sativum L.), and powdery
R E Falloon
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Occurrence of Potato Powdery Scab Caused by Spongospora subterranea in Korea [PDF]
Plant Pathology Journal, 2003 Potato tubers with scab lesions were found in several regions of Gangwon province in Korea during disease surveys in 2000 and 2001. The lesions appeared as shallow scabs with torn and raised skin around the periphery of the lesion. Sometimes the lesions expanded on tuber surface and formed hollowed-out areas.
Jeom-Soon Kim +4 more
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Effect of Powdery Scab Root Galls on Yield of Potato [PDF]
Plant Disease, 2015 Powdery scab of potato, caused by Spongospora subterranea f. sp. subterranea, has increased in incidence since 1981 to become a major concern for potato production in the Columbia Basin of south-central Washington and north-central Oregon. Disease symptoms consist of pustules on the tuber surface and wart-like galls on roots, stolons, and tubers.
Dennis A, Johnson, Thomas F, Cummings
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Somaclonal selection in potato for resistance to common scab provides concurrent resistance to powdery scab [PDF]
Plant Pathology, 2012 Variant somaclones of potato cultivar R usset B urbank, selected for resistance to common scab using in vitro cell selection techniques, were tested for resistance to powdery scab, another important disease of ...
Tegg, R. S. +3 more
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Powdery Scab of Potato—Occurrence, Life Cycle and Epidemiology [PDF]
American Journal of Potato Research, 2008 Powdery scab of potato, caused by the zoosporic pathogen Spongospora subterranea f.sp. subterranea (Sss), is an often underestimated disease, which has lead to lack of appropriate control strategies. A new wave of increasing importance of this disease has occurred in the last 30 years in many countries, among them France, Pakistan, Japan, Australia ...
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Draft Genome Resource for the Potato Powdery Scab Pathogen Spongospora subterranea [PDF]
Molecular Plant-Microbe Interactions®, 2018 The Plasmodiophorida (Phytomyxea, Rhizaria) are a group of protists that infect plants. Of this group, Spongospora subterranea causes major problems for the potato industry by causing powdery scab and root galling of potatoes and as vector for the Potato mop-top virus (PMTV) (genus Pomovirus, family Virgaviridae).
Stefan Ciaghi +2 more
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The effect of irrigation on powdery scab and other tuber diseases of potatoes
Annals of Applied Biology, 1987 SUMMARYIn field experiments seed tubers affected with powdery scab cankers were planted and the effect on disease incidence of timing of irrigation and some seed‐tuber fungicides was investigated over 3 yr. For 2 yr, irrigation to maintain soil wetter than—20 centibars (—20 kPa) during the first half of the growing season increased disease compared to ...
Adams, M. J. +4 more
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Powdery Scab of Potato: An Evaluation of Current Molecular Resources
Environmental Microbiology ReportsABSTRACT Spongospora subterranea f. sp. Subterranea (Sss), the causal agent of powdery scab in potatoes, is a globally important soil‐borne pathogen with an obligate biotrophic lifestyle and long‐lived resting ...
Sadegh Balotf, Calum Wilson
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Heritability of powdery mildew and scab resistance within apple progenies [PDF]
Plant Protection Science, 2016 The occurrence of both diseases was evaluated for four years in a selected orchard where 22 different apple progenies, totalling 699 seedlings were planted. During this period, no chemical protection against the diseases was applied in the orchard, and the incidence of the diseases was rated using a 9-point scale (from 9 = not infected to 1 = very ...
Jan Blažek +2 more
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