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Identification of Spongospora subterranea, a causal agent of potato scab disease in the region of Narino


, : Identification of Spongospora subterranea, a causal agent of potato scab disease in the region of Narino. ASCOLFI Informa 22(5): 61-63

High yield losses due to S. subterranea, disease distribution in Colombia and percentage losses in various potato cultivars are outlined.

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Montero Astua, M.; Rivera, C., 2005: Biology and economic importance of Spongospora subterranea f.sp. subterranea, the causal agent of potato powdery scab. The potato powdery scab, caused by Spongospora subterranea f.sp. subterranea, is an important potato disease because it causes cosmetic damage in the tubers, a reduction in yield and the transmission of Potato mop-top pomovirus (PMTV). In recent y...

Blum, B.; Merz, U., 1993: Occurrence of Spongospora subterranea, the causal agent of powdery scab disease of potatoes, in selected potato-producing areas. An increasing incidence of powdery scab of potato has been observed in the Swiss lowlands. In 1991, the disease caused severe problems, in particular, for growers of cv. Agria. In the absence of direct control measures, indirect control has to be...

Shamim Iftikhar; Iftikhar Ahmad; Abdul Hameed, 2002: Host of Spongospora subterranea, the causal organism of powdery scab of potato. Spongospora subterranea f.sp. subterranea causes powdery scab of potato. Scab disease depends on the survival and dormancy of resting spores of pathogen in the soil but it also depends on the rate of new resting spore production, on soil condition...

Montero-Astua, M.V.squez, V.R.vera, C., 2004: Potato powdery scab, caused by Spongospora subterranea f. sp. subterranea, in Costa Rica. Potato research05 47(1-2): 25-34

Montero Astua, M.; Vasquez, V.; Rivera, C., 2002: Occurrence of potato powdery scab caused by Spongospora subterranea f. sp. subterranea in Costa Rica. During a survey in 2001, powdery scab was observed from a field and a greenhouse in the high elevation zone of the main potato-producing area of Costa Rica. Commercial potatoes with scab-like lesions were also obtained at a farmers' market. S...

Draper, M.A.; Secor, G.A.; Gudmestad, N.C., 1997: First report of potato powdery scab, caused by Spongospora subterranea f.sp. subterranea, in North Dakota. Powdery scab, caused by S. subterranea f.sp. subterranea, was observed on potatoes in a field in Griggs County, North Dakota, USA, in 1994. Characteristic cystosori were present in lesions on infected tubers. The field was an irrigated circle plan...

Porta Puglia, A.; Mifsud, D., 2006: First record of powdery scab caused by Spongospora subterranea subsp. subterranea on potato in Malta. In April 2005, powdery scab was observed at harvest on tubers of potato cv. Derby in a field at Qrendi, Malta. Symptoms ranged from mild (typical) to extremely severe, mimicking wart disease. Histological observations disclosed the presence of Spo...

Gau, R.D.; Merz, U.; Falloon, R.E.; Brunner, P.C., 2014: Global genetics and invasion history of the potato powdery scab pathogen, Spongospora subterranea f.sp. subterranea. Spongospora subterranea f. sp. subterranea (Sss) causes two diseases on potato (Solanum tuberosum), lesions on tubers and galls on roots, which are economically important worldwide. Knowledge of global genetic diversity and population structure of...

J.L.B.ierley; L.S.llivan; S.J.W.le; A.J.H.lton; D.T.K.ezebrink; A.K.L.es, 2012: Relationship between Spongospora subterranea f sp subterranea soil inoculum level, host resistance and powdery scab on potato tubers in the field. The relationship between initial soil inoculum level of Spongospora subterranea f. sp. subterranea (Sss) and the incidence and severity of powdery scab on potato tubers at harvest was investigated. In all experiments soil inoculum level of Sss (sp...

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