Pathology and control of soil-borne fungal pathogens of potato

Jeger, M.J.; Hide, G. A.; Boogert, P.H.J.F. van den; Termorshuizen, A.J.; Baarlen, Peter van

doi:10.1007/bf02357949

Cited by 85 publications

(72 citation statements)

References 125 publications

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“…assessment of the available inoculum in the soil, determination of pathotypes/races/VCGs present in the site, cropping history of the field, etc. ), cultural practices, such as crop rotation and manipulation of fertility and irrigation, use of healthy planting material, including seeds, use of available resistant cultivars and sometimes pre-plant soil treatments, such as solarisation, that reduce the viability of microsclerotia in soil (El-Zik, 1985;Shen, 1985;Bell, 1992;Jeger et al, 1996;Klosterman et al, 2009;Jiménez-Díaz et al, 2012) may reduce disease incidence and severity, but they do not eliminate the pathogen.…”

Section: Currently Applied Control Methods In the Eumentioning

confidence: 99%

Scientific opinion on the pest categorisation of Verticillium dahliae Kleb

Rossi¹

2014

EFS2

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The European Commission requested the EFSA Panel on Plant Health to perform a pest categorisation of Verticillium dahliae Kleb., the fungal pathogen responsible for many Verticillium wilt diseases. V. dahliae is a single taxonomic entity, and sensitive and reliable methods exist for its detection and identification. V. dahliae is a highly polyphagous pathogen, affecting, overall, 400 cultivated and non-cultivated plant species. It is a hostadapted rather than a host-specific pathogen and has the ability to continuously widen its host range and develop races/pathotypes that can overcome host resistance or be more virulent on known hosts and host cultivars. V. dahliae is a vascular pathogen that causes wilt and plant death, thus impairing the growth and shortening the lifespan of its hosts. The pathogen is currently present in most parts of the risk assessment area, where yield reductions up to 50 % or more have been reported on some high value crops, including cotton, olive, potato, strawberry and ornamentals. There are no obvious eco-climatic factors limiting its potential establishment and spread in the non-infested part of the risk assessment area, where hosts are present. Once established, the pathogen can spread by both natural and human-assisted means. Movement of infected host plants for planting, especially asymptomatic plants, and seeds can introduce the pathogen (and its highly virulent races/pathotypes) into new areas. Application of integrated management strategies combined with disease risk assessment (assessment of the available soil-borne inoculum, determination of races/pathotypes present in the site, field cropping history) may reduce the impacts of Verticillium wilt in the risk assessment area, but it cannot eliminate the pathogen. V. dahliae is listed in Annex IIAII of Directive 2000/29/EC and, despite its wide host range, it is regulated only on Humulus lupulus (hop), for which the pathogen is considered of minor importance compared to V. nonalfalfae.

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Section: Currently Applied Control Methods In the Eumentioning

confidence: 99%

Scientific opinion on the pest categorisation of Verticillium dahliae Kleb

Rossi¹

2014

EFS2

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“…R. solani colonises the below-ground potato plant surface in response to exudates release from root and shoot (Jeger et al, 1996). It proliferates on the root/stolon system to form a broad network of anastomosing hyphae.…”

Section: The Disease: Infection Process Disease Development and Sympmentioning

confidence: 99%

“…Practices that favour rapid emergence like shallow planting or using greened seed tubers seem to restrict stem canker infection (Carling & Leiner, 1990b;Jeger et al, 1996) owing to the greater resistance to infection of mature than immature tissue such as emerging spouts and stolons. Firman & Allen (1995) showed that an increase in plant density resulted in an increased severity of black scurf on progeny tubers.…”

Section: Soil Moisture and The Managementmentioning

confidence: 99%

“…Agronomic factors such as plant material, cultivar, crop rotation, soil management, tillage, irrigation, pesticide application, haulm destruction, harvesting, crop residues, volunteer plants and storage all have a profound influence on the incidence and severity of potato rhizoctoniasis (Jeger et al, 1996).…”

Section: Cultural Controlmentioning

confidence: 99%

“…The Rhizoctonia disease complex is common and occurs in potato production areas throughout the world (Banville 1989;Powelson et al, 1993;Banville et al, 1996;Jeger et al, 1996;Banville and Carling 2001). The fungus limits the growth by forming cankers on sprouts, underground stems, and stolons, and makes tubers ugly by forming black scurf (sclerotia) on tuber surfaces.…”

Section: Rhizoctonia Solani Kuhn (Teleomorphmentioning

confidence: 99%

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