NDLI: Effect of Post-Harvest Fungicides and Disinfestants on the Suppression of Silver Scurf on Potatoes in Storage

Please wait, while we are loading the content...

Effect of Post-Harvest Fungicides and Disinfestants on the Suppression of Silver Scurf on Potatoes in Storage

Content Provider	Springer Nature Link
Author	Miller, Jeffrey S. Hamm, Philip B. Olsen, ra Geary, Brad D. Johnson, Dennis A.
Copyright Year	2011
Abstract	Silver scurf of potato, caused by Helminthosporium solani, can be a serious problem of potato tubers sold for table stock. The fungus originates primarily on seed and infects the periderm of daughter tubers, causing unsightly blemishes that reduce tuber quality. Secondary spread occurs in potato storage facilities when spores produced on infected tubers are moved through the air system. Depending on storage conditions and time, even a low initial disease incidence can result in significant losses through quality reductions. In the past, thiabendazole has been the most effective post harvest treatment in controlling this disease, but the development of fungicide resistance has made this product unreliable. Because of the lack of consistent alternatives, studies were conducted from 2001 to 2003 to examine the efficacy of various products in suppressing silver scurf incidence and severity when applied to tubers following harvest and prior to storage. Daughter tubers from a seed lot with high incidence of silver scurf symptoms were grown and then harvested 1 month after vine kill. After harvest, tubers were treated with a post-harvest application of various products, stored, and then evaluated for disease incidence and severity each year at two locations (Washington or Oregon and Idaho) and at two time periods (2 or 3 months and 6 months following storage). When treated tubers were stored from the fall of 2002 to spring of 2003, potassium sorbate and B. subtilis reduced disease severity after 6 months in storage at location 1, while azoxystrobin reduced incidence after 6 months in location 2. During the 2003–2004 storage season, azoxystrobin reduced silver scurf at both locations after 2 months of storage. Most products currently labeled for post-harvest silver scurf management were ineffective. While not currently registered, azoxystrobin used as a post- harvest, pre- storage treatment may be a significant method for commercial potato growers to suppress silver scurf in potato storage.La mancha plateada de la papa, causada por Helminthosporium solani, puede ser un problema serio de tubérculos de papa para el mercado en fresco. El hongo se origina primeramente en la semilla e infecta el peridermo de los tubérculos hijos, causando manchados desagradables que reducen la calidad del tubérculo. La dispersión secundaria se presenta en las instalaciones de almacenamiento de papa cuando las esporas producidas en tubérculos infectados se mueven a través del sistema de aire. Dependiendo de las condiciones de almacenamiento y del tiempo, aún una incidencia baja inicial de la enfermedad puede resultar en pérdidas significativas por reducción de la calidad. En el pasado, el thiabendazole ha sido el tratamiento más efectivo de postcosecha en el control de esta enfermedad, pero el desarrollo de resistencia a fungicidas ha hecho no confiable a este producto. Debido a la falta de alternativas consistentes, se hicieron estudios de 2001 a 2003 para examinar la eficacia de varios productos en la supresión de la incidencia y severidad de la mancha plateada cuando se aplica a los tubérculos después de la cosecha y antes del almacenamiento. Se sembraron tubérculos provenientes de un lote de semilla con alta incidencia de síntomas de la mancha plateada y después se cosecharon un mes después del secado del follaje. Después de la cosecha se trató a los tubérculos con una aplicación postcosecha de varios productos, se almacenaron y se evaluaron para la incidencia y severidad de la enfermedad cada año en dos localidades (Washington u Oregon y Idaho) y en dos períodos de tiempo (2 a 3 meses y 6 meses después del almacenamiento). Cuando los tubérculos tratados se almacenaron del otoño del 2002 a la primavera del 2003, el sorbato de potasio y B. subtilis redujeron la severidad de la enfermedad después de 6 meses en almacenamiento en la localidad 1, mientras que azoxystrobin redujo la incidencia después de 6 meses en la localidad 2. Durante el período de almacenamiento 2003–2004, azoxystrobin redujo la mancha plateada en ambas localidades después de dos meses de almacenamiento. La mayoría de los productos que normalmente están etiquetados para el manejo postcosecha de la mancha plateada no fueron efectivos. Aun cuando no está actualmente registrado, azoxystrobin usado como tratamiento post-cosecha, pre-almacenamiento, puede ser un método significativo para los productores comerciales de papa para suprimir la mancha plateada en almacenamiento de papa.
Starting Page	413
Ending Page	423
Page Count	11
File Format	PDF
ISSN	1099209X
Journal	American Potato Journal
Volume Number	88
Issue Number	5
e-ISSN	18749380
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-09-05
Publisher Institution	Potato Association of America
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Silver scurf Helminthosporium solani Post-harvest disease management Azoxystrobin Thiabendazole Hydrogen peroxide Plant Genetics & Genomics Plant Sciences Plant Breeding/Biotechnology Plant Pathology Agriculture
Content Type	Text
Resource Type	Article
Subject	Plant Science Agronomy and Crop Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Resistance to thiabendazole in isolates of Helminthosporium solani, the cause of silver scurf disease of potatoes

Management of silver scurf (Helminthosporium solani) with fungicide seed treatments and storage practices

Evaluating Incidence of Helminthosporium solani and Colletotrichum coccodes on Asymptomatic Organic Potatoes and Screening Potato Lines for Resistance to Silver Scurf

A Draft Genome Sequence Reveals the Helminthosporium solani Arsenal for Cell Wall Degradation

Influence of Location, Year, Potato Rotation, and Chemical Seed Treatment on Incidence and Severity of Silver Scurf on Progeny Tubers

Factors aflfecting the development of silver scurf (Helminthosporium solani) on potato tubers

Development of resistance to thiabendazole in Helminthosporium solani (silver scurf) as a result of potato seed tuber treatment

Development of Rhizoctonia solani on Stems, Stolons and Tubers of Potatoes I. Effect of Inoculum Source

Reduction of silver scurf on potatoes by pre- and post-storage treatment of seed tubers with imazalil

Effect of Post-Harvest Fungicides and Disinfestants on the Suppression of Silver Scurf on Potatoes in Storage

Similar Documents

Resistance to thiabendazole in isolates of Helminthosporium solani, the cause of silver scurf disease of potatoes

Management of silver scurf (Helminthosporium solani) with fungicide seed treatments and storage practices

Evaluating Incidence of Helminthosporium solani and Colletotrichum coccodes on Asymptomatic Organic Potatoes and Screening Potato Lines for Resistance to Silver Scurf

A Draft Genome Sequence Reveals the Helminthosporium solani Arsenal for Cell Wall Degradation

Influence of Location, Year, Potato Rotation, and Chemical Seed Treatment on Incidence and Severity of Silver Scurf on Progeny Tubers

Factors aflfecting the development of silver scurf (Helminthosporium solani) on potato tubers

Development of resistance to thiabendazole in Helminthosporium solani (silver scurf) as a result of potato seed tuber treatment

Development of Rhizoctonia solani on Stems, Stolons and Tubers of Potatoes I. Effect of Inoculum Source

Reduction of silver scurf on potatoes by pre- and post-storage treatment of seed tubers with imazalil

Effect of Post-Harvest Fungicides and Disinfestants on the Suppression of Silver Scurf on Potatoes in Storage