Potato virus Y: Control, Management and Seed Certification Programmes

Dupuis, Brice; Bragard, Claude; Carnegie, S. F.; Kerr, John R.; Glais, Laurent; Singh, Mathuresh; Nolte, Phillip; Rolot, Jean-Louis; Demeulemeester, Kürt; Lacomme, Christophe

doi:10.1007/978-3-319-58860-5_7

Cited by 10 publications

(19 citation statements)

References 96 publications

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“…10,31 Potato virus control worldwide is currently largely achieved through seed quality and certification, vector control with insecticides and cultural control methods. 28,31 Management of PVY poses an even greater challenge than that of PLRV, because it is transmitted non-persistently within seconds and insecticides may have a limited effect. 49 Effective PVY management relies therefore on prevention.…”

Section: Pvy and Plrv Managementmentioning

confidence: 99%

“…49 Effective PVY management relies therefore on prevention. 28 Depending on the prevalence of PVY or PLRV in a region and local conditions, a combination of various management strategies may be required for both viruses.…”

Section: Pvy and Plrv Managementmentioning

confidence: 99%

“…Apart from maximising soil and water conservation, integration of a variety of existing and innovative emerging strategies is likely to be required to cope with increasing uncertainty, and variable rainfall and temperatures. 10,50 General reviews of plant virus management strategies can be found in Jones and Naidu 36 and Kreuze et al 20 Radcliffe and Ragsdale 31 and Dupuis et al 28 reviewed management strategies for PVY and Radcliffe and Ragsdale 31 for PLRV. The following provides a brief overview of management options with emphasis on sub-Saharan Africa.…”

Section: Pvy and Plrv Managementmentioning

confidence: 99%

“…The risk of PVY and PLRV spread can be minimised by planting diseasefree seed potatoes. 28 Even so, seed quality has been identified as a major limiting factor to successful potato production in a number of countries across sub-Saharan Africa 1,10,29,51 where lack of specialised growers, informal seed systems and the use of unmarketable ware potatoes often result in poor-quality tubers, which produce low yields and tubers with low market values 1,29 .…”

Section: Seed Quality and Seed Certificationmentioning

confidence: 99%

“…Thus, PVY or PLRV infection can lead to downgrading or rejection of seed lots if tolerance levels set by seed potato certification schemes are exceeded. [25][26][27][28] Tubers from informal seed systems, previous crops or tubers that are unmarketable are often used for planting 29 ; this becomes a severe problem, especially for smallholder farmers in sub-Saharan Africa. Both PVY and PLRV are transmitted to the new potato crop through aphid (Hemiptera: Aphididae) vectors (horizontal transmission; primary infection) or via infected seed tubers to daughter tubers (vertical transmission; secondary infection).…”

Section: Introductionmentioning

confidence: 99%

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Potato virus Y and Potato leafroll virus management under climate change in sub-Saharan Africa

Krüger

Waals

2020

S. Afr. J. Sci.

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Potato has increased in importance as a staple food in sub-Saharan Africa, where its production is faced with a multitude of challenges, including plant disease development and spread under changing climatic conditions. The economically most important plant viruses affecting potatoes globally are Potato virus Y (PVY) and Potato leafroll virus (PLRV). Disease management relies mostly on the use of insecticides, cultural control and seed certification schemes. A major obstacle in many sub-Saharan Africa countries is the availability of disease-free quality seed potatoes. Establishment and implementation of quality control through specialised seed production systems and certification schemes is critical to improve seed potato quality and reduce PVY and PLRV sources. Seed could be further improved by breeding virus-resistant varieties adapted to different environmental conditions combined with management measures tailored for smallholder or commercial farmers to specific agricultural requirements. Innovative technologies – including more sensitive testing, remote sensing, machine learning and predictive models – provide new tools for the management of PVY and PLRV, but require support for adoption and implementation in sub-Saharan Africa.

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