Results 201 to 210 of about 135,719 (239)
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American Potato Journal, 1977
Isolations from 315 blackleg infected potato stems collected over a two year period in Colorado, demonstrated that both varieties ofErwinia carotovora, E. carotovora var.carotovora andE. carotovora var.atroseptica, are involved in stem infections under field conditions.E.
M D Harrison
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Isolations from 315 blackleg infected potato stems collected over a two year period in Colorado, demonstrated that both varieties ofErwinia carotovora, E. carotovora var.carotovora andE. carotovora var.atroseptica, are involved in stem infections under field conditions.E.
M D Harrison
exaly +2 more sources
Landscape Epidemiology of Potato Blackleg
Phytopathology®, 2023Potato blackleg is a common bacterial disease that causes serious losses in potato ( Solanum tuberosum) production worldwide. Despite this, relatively little is known of the landscape epidemiology of this disease. This study provides the first national-scale analysis of spatial and spatiotemporal patterns of blackleg incidence rates and associated risk
Peter Skelsey +2 more
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American Potato Journal, 1970
Blackleg, a bacterial soft-rot of potatoes caused byErwinia atroseptica, has been recognized since the turn of the century as a disease capable of causing tremendous losses to the crop in the field or in storage. The pathogen is both seed- and soil-borne, and generally attacks the seed piece through wounds caused by insect larvae, fertilizer burns ...
A. L. Fredricks, H. N. Metcalf
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Blackleg, a bacterial soft-rot of potatoes caused byErwinia atroseptica, has been recognized since the turn of the century as a disease capable of causing tremendous losses to the crop in the field or in storage. The pathogen is both seed- and soil-borne, and generally attacks the seed piece through wounds caused by insect larvae, fertilizer burns ...
A. L. Fredricks, H. N. Metcalf
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Factors Affecting Potato Blackleg Development
1989Blackleg is a seedborne disease caused by soft rot erwinias. The symptoms may vary not only from one climatic region to another but also within a region according to local and annual variations in weather conditions. Regardless of temperature, a stem rot develops under wet conditions, and under dry conditions the plant is stunted and leaf desiccation ...
M. C. M. Pérombelon +4 more
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Effects of fluorescent pseudomonads on the potato blackleg syndrome
Annals of Applied Biology, 1986SUMMARYIn four field trials in 1983 and 1984 potato tubers were inoculated by dipping them at planting in a suspension of Erwinia carotovora subsp. atroseptica and then treated with a powder formulation of two strains of fluorescent pseudomonads (B 10 and I 13) isolated from potatoes. lnoculation with E.
D. J. RHODES, C. LOGAN
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Blackleg and Stem Rot of Potatoes in Sweden
Acta Agriculturae Scandinavica, 1988Abstract Samples of potato plants showing symptoms of basal soft rot (blackleg) and aerial soft rot (stem rot) were collected from potato fields in Sweden during 1982–1984. Erwinia carotovora subsp. atroseptica (Eca) was the predominant species isolated from blackleg stems while both Eca and E. carotovora subsp.
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Blackleg of Potatoes: Induction through Tuber InocuIation
Plant Pathology, 1975SUMMARY Seed tubers of cv. Majestic were inoculated with isolates of Erwinia carotovora from the Canary Isles, Egypt and the United Kingdom in order to determine which of the isolates could induce blackleg in progeny plants.
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The influence of inoculum density and environment on the development of potato blackleg
American Potato Journal, 1978Significant increases in pre-emergence seedpiece decay and preemergence shoot infection were observed asErwinia carotovora var.atroseptica inoculum density increased. As inoculum density increased, a point was reached where virtually 100 per cent of the disease was expressed as preemergence decay and no typical postemergence blackleg occurred.
John R. Aleck, M. D. Harrison
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Effect of inorganic fertilizers on the Incidence of potato blackleg disease
European Potato Journal, 1966In assessing disease levels in a number of potato fertilizer trials in south-east Scotland it was found that an increase in the rate of application of complete fertilizer or nitrogen alone resulted in a decrease in the proportion of stems affected by potato blackleg.
Graham, D. C., Harper, P. C.
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Identification of the pathogen causing blackleg of potatoes in New Zealand
New Zealand Journal of Agricultural Research, 1974Abstract The pathogen responsible for blackleg of potatoes has been isolated in New Zealand for the first time and identified as Erwinia carotovora var. atroseptica (van Hall) Dye, 1969.
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