Epidemiology and Management of the Diseases Causal to Asparagus Decline.

Elmer, Wade H.; Johnson, D. A.; Mink, G. I.

doi:10.1094/pd-80-0117

Cited by 98 publications

(69 citation statements)

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“…spinaciae were also reported by Escuadra & Amemiya (2008), Israel et al (2011) and Martínez et al (2011). On the other hand, the lower severity of root symptoms caused by isolate Fp3, as compared to Fo5 and Fs2 (except for incubation of substrate amended with PPM-2% at 30ºC) is likely due to poor survival of F. proliferatum in bare soils, as this species does not produce chlamydospores; therefore the initial inoculum density was lower for this than for the two other species tested (Elmer et al, 1996;Elmer, 2001). This is in agreement with previous results (Reid et al, 2002) that showed a low root severity (20%) using F. proliferatum at 1.3 × 10 4 CFU/g (similar to that in our experiments).…”

Section: Discussionsupporting

confidence: 56%

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Organic amendments conditions on the control of Fusarium crown and root rot of asparagus caused by three Fusarium spp.

Borrego-Benjumea

Melero‐Vara

Basallote-Ureba

2015

Span. j. agric. res.

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Fusarium oxysporum (Fo), F. proliferatum (Fp) and F. solani (Fs) are causal agents associated with roots of asparagus affected by crown and root rot, a disease inflicting serious losses worldwide. The propagule viability of Fusarium spp. was determined on substrate artificially infested with Fo5, Fp3 or Fs2 isolates, amended with either poultry manure (PM), its pellet (PPM), or olive residue compost (ORC) and, thereafter, incubated at 30 or 35°C for different periods. Inoculum viability was significantly affected by these organic amendments (OAs) in combination with temperature and incubation period. The greatest reduction in viability of Fo5 and Fs2 occurred with PPM and loss of viability achieved was higher at 35°C than at 30ºC, and longer incubation period (45 days). However, the viability of Fp3 did not decrease greatly in most of the treatments, as compared to the infested and un-amended control, when incubated at 30ºC. After incubation, seedlings of asparagus `Grande´ were transplanted into pots containing substrates infested with the different species of Fusarium. After three months in greenhouse, symptoms severity in roots showed highly significant decreases, but Fp3 caused lower severity than Fo5 and Fs2. Severity reduction was particularly high at 30ºC (by 15 days incubation for Fs2 and by 30-45 days for Fo5), after PPM treatment, as well as PM-2% for Fo5 and Fs2 incubated during 30 and 45 days at both temperatures, and with ORC (15-30 days incubation). Moreover, assessment of plants fresh weight showed significantly high increases in Fo5 and Fs2, with some rates of the three OAs tested, depending on incubation period and temperature.Additional key words: biofumigation; Fusarium oxysporum f. sp. asparagi; Fusarium proliferatum; Fusarium solani; olive residue compost; pelleted poultry manure; poultry manure.

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Section: Discussionsupporting

confidence: 56%

“…Fusarium crown and root rot (FCRR), probably the most important disease of asparagus in the world (Schreuder et al, 1995;Elmer et al, 1996;Blok & Bollen, 1997), has a complex etiology, with several Fusarium spp. associated with the roots of asparagus, involved as causal agents of the disease (Blok & Bollen, 1995;Elmer, 2001).…”

Section: Introductionmentioning

confidence: 99%

Organic amendments conditions on the control of Fusarium crown and root rot of asparagus caused by three Fusarium spp.

Borrego-Benjumea

Melero‐Vara

Basallote-Ureba

2015

Span. j. agric. res.

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“…in abhängigkeit von den jeweiligen Standortbedingungen treten dabei weltweit am häufigsten F. oxysporum Schlecht. und F. proliferatum (Matsushima) Nirenberg auf (Blok und Bollen 1995;elmer et al 1996;Goßmann et al 2001Goßmann et al , 2005Goßmann et al , 2008logrieco et al 1998;Weber et al 2006). Fäulen an den Wurzeln, den rhizomen und der Stängelbasis, irreversiblen Welken und Degenerationen, sowie Mykotoxine, die durch diese Fusarium-arten gebildet werden können, bedingen ertragsminderungen in Quantität und Qualität bei Spargel.…”

Section: Abstract Fusarium Oxysporum · Fusarium Proliferatum · Asparaunclassified

Fusarium oxysporum- und F. proliferatum-Isolate aus Spargel und deren Pathogenitätsüberprüfung in einer modifizierten in vitro-Schnelltestmethode

et al. 2011

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3O r i g i n a l b e i t r a g Zusammenfassung Fusarium oxysporum und Fusarium proliferatum sind wichtige erreger der Kronen-und Wurzelfäule an Spargel. Um Unterschiede in der Pathogenität und aggressivität zu detektieren, wurden sowohl einsporisolate von zwei F. proliferatum- und fünf F. oxysporumHerkünften aus Spargelstangen aus österreichischen und deutschen anlagen, als auch reinkulturen von insgesamt 55 isolaten von F. oxysporum aus Spargelwurzeln einer hessischen Spargelanlage und einem F. oxysporum-isolat aus einer Spargelstange einer österreichischen anlage, einem insgesamt 28-tägigen in vitro-Pathogenitätsschnell-test auf einem Hoagland-agar in glasröhrchen unterzogen. Unter sterilen und kontrollierten bedingungen in der Klimazelle wurden ca. 14 Tage alte Spargeljungpflanzen mit einer Sporensuspensionen der jeweiligen isolate inokuliert. nach einer zweiwöchigen inkubation wurde mittels visueller Wurzelbonitur nach Schadklassen, der Parameter befallsgrad ermittelt. bei der Prüfung der einsporkulturen wurde zusätzlich noch die Frischmasse von Wurzel und Spross erfasst.Die Pathogenität der meisten F. proliferatum- und der F. oxysporum-isolate wurde in diesem test bestätigt. im Vergleich zur unbehandelten Kontrolle zeigte sich, sowohl bei der inokulation mit rein-, als auch einsporkulturen von F. oxysporum und F. proliferatum, ein erhöhter befallsgrad der Wurzeln. insbesondere die beiden F. proliferatum-isolate erwiesen sich aggressiver, als die von F. oxysporum geprüften isolate. Zudem wiesen alle einsporisolate eine reduzierung der Frischmassen von Wurzel und Spross im Vergleich zur Kontrolle auf. Hinsichtlich der Sortenunterschiede bestätigte sich, dass "ramos" anfälliger gegenüber den geprüften F. oxysporum-isolaten reagierte, als "ravel".insgesamt erwies sich die geprüfte in vitro-Schnellmethode als geeignet, die Pilzstämme aller eingesetzten F. oxysporum-und F. proliferatum-isolate innerhalb von 28 tagen hinsichtlich ihrer Pathogenität zu evaluieren und deren aggressivität an Spargel vergleichend zu bewerten. Schlüsselwörter Fusarium oxysporum · Fusarium proliferatum · Spargel · Pathogenität · In vitro-SchnelltestmethodeEvaluation of the pathogenicity of Fusarium oxysporum and F. proliferatum isolates from asparagus using a modified in vitro quick test method Abstract Fusarium oxysporum and Fusarium proliferatum are important causal agents of crown and root rot of asparagus. in order to detect differences in pathogenicity and aggressiveness, two F. proliferatum and five F. oxysporum single spore isolates from asparagus spears from plantings in austria and germany, 55 pure cultures of F. oxysporum from asparagus roots from a planting in Hesse, germany, and a single F. oxysporum isolate from an asparagus shoot collected in austria were evaluated in a 28-day quick test on Hoagland's agar in glass culture tubes. Plantlets were inoculated with spore suspensions from each respective isolate after 14 days of growth under sterile, controlled conditions in a growth chamber. a severity scale was used

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“…Early decline of asparagus (Asparagus officinalis L.) is a phenomenon common to all asparagus producing areas, especially in replanted fields (Elmer et al, 1996). In the Netherlands, the economic life span of an asparagus crop on virgin land is about 10 years.…”

Section: Introductionmentioning

confidence: 99%

“…However, then crop vigor declines and the number of dead plants increases rapidly, resulting in an average economic life span of only five to six years. A number of factors have been identified to contribute to early decline, including soilborne fungal pathogens such as Fusarium and Phytophthora species, pathogens attacking the shoot, autotoxic compounds present in asparagus residues, viruses, insects, and unsuitable environmental conditions (Hartung, 1987;Peirce and Colby, 1987;Elmer et al, 1996). Blok and Bollen (1996a) have studied the causal factors involved in early decline under Dutch conditions.…”

Section: Introductionmentioning

confidence: 99%

The Potential of Biological Soil Disinfestation to Manage Fusarium Foot and Root Rot in Asparagus

Blok¹,

Coenen²,

Lamers³

et al. 2008

Acta Hortic.

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Epidemiology and Management of the Diseases Causal to Asparagus Decline.

Cited by 98 publications

References 0 publications

Organic amendments conditions on the control of Fusarium crown and root rot of asparagus caused by three Fusarium spp.

Organic amendments conditions on the control of Fusarium crown and root rot of asparagus caused by three Fusarium spp.

Fusarium oxysporum- und F. proliferatum-Isolate aus Spargel und deren Pathogenitätsüberprüfung in einer modifizierten in vitro-Schnelltestmethode

The Potential of Biological Soil Disinfestation to Manage Fusarium Foot and Root Rot in Asparagus

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