NDLI: Crop Management Practices and Reduction of On-Farm Spread of Potato virus Y: a 5-Year Study in Commercial Potato Fields in New Brunswick, Canada

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Crop Management Practices and Reduction of On-Farm Spread of Potato virus Y: a 5-Year Study in Commercial Potato Fields in New Brunswick, Canada

Content Provider	Springer Nature Link
Author	MacKenzie, Tyler D. B. Nie, Xianzhou Singh, Mathuresh
Copyright Year	2016
Abstract	In this study, on-farm within-season spread of Potato virus Y (PVY) was measured in 56 seed, processing and tablestock potato fields in New Brunswick, Canada between 2010 and 2014. These represented 13 potato varieties, managed by 16 growers employing a wide range of PVY control techniques. Many aspects of management techniques were quantified, as well local aphid abundances and climatological data. PVY spread, measured in leaves and tubers (by ELISA and RT-PCR), was tracked through the season in individually marked plants. Over the five seasons under study, on-farm PVY spread overall has declined substantially. Across all 56 fields, however, it has varied widely, from 10 fields not showing any spread during the crop season, up to as high as 76 % spread in one 2012 field. Factors correlated with increased PVY spread included seed-borne PVY inoculum planted in the field, aphid abundance early in the season, and to a lesser degree temperatures in July and over the preceding winter. Factors correlated with decreased spread included numbers of foliar mineral oil and insecticide sprays (especially of the lambda-cyhalothrin and flonicamid types), later crop planting and earlier first spraying dates. A mid-season leaf test for PVY was shown to be strongly indicative of ultimate PVY spread at harvest, and may prove a useful test in advising growers. A set of locally-relevant best management practices based on these results is discussed.En este estudio, se midió la dispersión del virus Y de la papa (PVY) en el campo en el ciclo de cultivo, en 56 campos de semilla, de proceso y de mercado fresco, en New Brunswick, Canadá, entre el 2010 y el 2014. Esto representó 13 variedades de papa, manejadas por 16 productores, empleando una gran amplitud de técnicas de control del PVY. Se cuantificaron muchos aspectos de técnicas de manejo, así como la abundancia local de áfidos y datos climatológicos. La dispersión del PVY, medida en hojas y tubérculos (por ELISA y RT-PCR) se siguió a lo largo del ciclo en plantas marcadas individualmente. A lo largo de los cinco ciclos bajo estudio, la dispersión en general del PVY en el campo ha declinado substancialmente. No obstante, a través de los 56 campos, ha variado ampliamente, de 10 campos que no mostraron ninguna dispersión durante el ciclo de cultivo, hasta 76 % de dispersión en un campo en 2012. Los factores correlacionados con el incremento en la dispersión del PVY incluyeron el inóculo del PVY en la semilla sembrada en el campo, la abundancia de áfidos temprano en el ciclo, y a una menor temperatura en julio y durante el invierno anterior. Los factores correlacionados con una disminución en la dispersión incluyeron al número de aspersiones foliares de aceite mineral e insecticidas (especialmente del tipo lambda-cyhalothrina y flonicamida), plantaciones tardías, y fechas tempranas de la primera aspersión. Una prueba foliar a mitad del ciclo para PVY mostró ser fuertemente indicativa de dispersión ultima del PVY a la cosecha, y pudiera probar ser una prueba útil en advertir a los productores. Se discute un conjunto de las mejores prácticas locales relevantes de manejo basadas en estos resultados.
Starting Page	552
Ending Page	563
Page Count	12
File Format	PDF
ISSN	1099209X
Journal	American Potato Journal
Volume Number	93
Issue Number	6
e-ISSN	18749380
Language	English
Publisher	Springer US
Publisher Date	2016-08-29
Publisher Institution	Potato Association of America
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PVY Mineral oil Insecticide Seed-borne PVY ELISA RT-PCR Plant Sciences Agriculture Plant Genetics & Genomics Plant Breeding/Biotechnology Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Plant Science Agronomy and Crop Science

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Effectiveness of Combined Use of Mineral Oil and Insecticide Spray in Reducing Potato Virus Y (PVY) Spread under Field Conditions in New Brunswick, Canada

Mechanical Transmission of Potato Virus Y (PVY) Through Seed Cutting and Plant Wounding

Census Report of the Potato Virus Y (PVY) Population in Swiss Seed Potato Production in 2003 and 2008

The Use of Mineral Oil in Potato Protection: Dynamics in the Plant and Effect on Potato Virus Y Spread

Optimization of a Real-Time RT-PCR Assay and its Comparison with ELISA, Conventional RT-PCR and the Grow-out Test for Large Scale Diagnosis of Potato virus Y in Dormant Potato Tubers

Efficacy of Mineral Oil-Insecticide Mixtures for Protection of Potato Tubers Against PVY and PVM

Distribution of Potato virus Y Strains in Tubers during the Post-Harvest Period

Investigation of Potato virus Y (PVY) Strain Status and Variant Population in Potatoes in New Brunswick, Canada

Chenopodium album L. as a Host for Potato Virus Y (PVY) in New Brunswick, Canada

Crop Management Practices and Reduction of On-Farm Spread of Potato virus Y: a 5-Year Study in Commercial Potato Fields in New Brunswick, Canada

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Crop Management Practices and Reduction of On-Farm Spread of Potato virus Y: a 5-Year Study in Commercial Potato Fields in New Brunswick, Canada