Bakteriosen

Stapp, Carl

doi:10.1007/978-3-642-94844-2_31

Cited by 1 publication

(2 citation statements)

References 24 publications

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“…At the beginning of the 20 th century, there was considerable confusion as to the causal agents of vascular diseases of potato with bacterial origin. At that time, three bacterial vascular diseases of potatoes were known: brown rot or bacterial wilt, occasionally (according to Stapp 1956) also named ring disease, which is caused by Bacterium solanacearum Smith 1896 (= Ralsto-nia solanacearum [Smith 1896] (Yabuuchi et al 1995; ring disease (Appel's ring disease, German ring disease) caused by a complex of unspecified bacteria; and ring rot (Spieckermann' Worth mentioning is Smith's view (Smith 1914) that the causal agent of Appel's ring disease is possibly Bacterium solanacearum (= Ralstonia solanacearum). However, Ralstonia solanacearum can be probably excluded as a potential pathogen causing destructive damages in potato crops in Central Europe at the beginning of the 20 th century.…”

Section: Period 1910-1929mentioning

confidence: 99%

“…Ring rot symptoms may be masked by secondary infection of tubers by opportunistic organisms. Affected tubers eventually disintegrate completely in the field or in storage and large yield losses may be incurred (Baer & Gudmestad 2001). limiting the practice to plant cut seed tubers on the other hand (Stapp 1956;Langerfeld 1989;Janse 2006). In the Czech Lands, data obtained from official sources from the period 1930-1985 must be interpreted with caution.…”

Section: Rhizoctonia Solani Causal Agent Of Rhizoctonia Cankermentioning

confidence: 99%

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History of bacterial ring rot of potato in the Czech Lands and a proposal for relaxation of strict quarantine measures

Kůdela¹

2007

Plant Prot. Sci.

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Kůdela V. (2007): History of bacterial ring rot of potato in the Czech Lands and a proposal for relaxation of strict quarantine measures. Plant Protect. Sci., 43: 35-46.In the supposed or proven incidence of bacterial ring rot caused by Clavibacter michiganensis subsp. sepedonicus (Cms) in certified seed and commercial potatoes, five periods can be identified in the Czech Lands from 1910 to 2006: (i) high incidence of Cms in potato crops is claimed (about 1910-1929); (ii) very low incidence in certified potatoes and sporadic occurrence in commercial potatoes (about 1930-1985); (iii) increasing incidence of Cms in certified seed potatoes and its sporadic occurrence in commercial potatoes is assumed (about 1986-1997); (iv) a relatively high percentage of potato tuber samples proved to be infected by Cms, namely 1.14% in seed potatoes in 1998 and 4.13% in commercial potatoes in 1999 (1998-2004 period); (v) progressive decrease of Cms incidence to zero in seed potato samples and 0.19% in commercial samples in 2005, followed by a slight increase to 0.15% in seed potatoes and 0.23% in commercial potatoes in 2006 (2005-2006 period). Thus, up to 2006, Cms was and is not widely distributed in the CR and is actively and effectively controlled, mainly through the zero tolerance for ring rot bacterium in the seed potato certification program. In the CR, Cms has a relatively low capacity for damage and can hardly be considered as a pest of national economic importance. Strictly speaking, Cms does not fulfill the criteria for a quarantine organism. If, however, the quarantine status of Cms will be maintained, the severe post-entry measures against it should be relaxed.

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Section: Period 1910-1929mentioning

confidence: 99%

Section: Rhizoctonia Solani Causal Agent Of Rhizoctonia Cankermentioning

confidence: 99%