Article

 

Fungicide Sensitivity of US Genotypes of Phytophthora infestans to Six Oomycete-Targeted Compounds Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/r494vn118

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by American Phytopathological Society and can be found at:  http://apsjournals.apsnet.org/loi/pdis

Descriptions

Attribute NameValues
Creator
Abstract
  • Phytophthora infestans causes potato late blight, an important and costly disease of potato and tomato crops. Seven clonal lineages of P. infestans identified recently in the United States were tested for baseline sensitivity to six oomycete-targeted fungicides. A subset of the dominant lineages (n = 45) collected between 2004 and 2012 was tested in vitro on media amended with a range of concentrations of either azoxystrobin, cyazofamid, cymoxanil, fluopicolide, mandipropamid, or mefenoxam. Dose-response curves and values for the effective concentration at which 50% of growth was suppressed were calculated for each isolate. The US-8 and US-11 clonal lineages were insensitive to mefenoxam while the US-20, US-21, US-22, US-23, and US-24 clonal lineages were sensitive to mefenoxam. Insensitivity to azoxystrobin, cyazofamid, cymoxanil, fluopicolide, or mandipropamid was not detected within any lineage. Thus, current U.S. populations of P. infestans remained sensitive to mefenoxam during the displacement of the US-22 lineage by US-23 over the past 5 years.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Saville, A., Graham, K., Grünwald, N. J., Myers, K., Fry, W. E., & Ristaino, J. B. (2015). Fungicide sensitivity of US genotypes of Phytophthora infestans to six oomycete-targeted compounds. Plant Disease, 99(5), 659-666. doi:10.1094/PDIS-05-14-0452-RE
Journal Title
Series
Rights Statement
Funding Statement (additional comments about funding)
  • This project was funded by a USDA AFRI grant # 2011-68004-30154.
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2015-10-05T18:35:43Z No. of bitstreams: 1 GrünwaldNiklausBotanyPlantPathFungicideSensitivityUS.pdf: 946579 bytes, checksum: f220157d0bc0139c4a4a3f100c3937cf (MD5)
  • description.provenance : Made available in DSpace on 2015-10-05T18:37:01Z (GMT). No. of bitstreams: 1 GrünwaldNiklausBotanyPlantPathFungicideSensitivityUS.pdf: 946579 bytes, checksum: f220157d0bc0139c4a4a3f100c3937cf (MD5) Previous issue date: 2015-05
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-10-05T18:37:01Z (GMT) No. of bitstreams: 1 GrünwaldNiklausBotanyPlantPathFungicideSensitivityUS.pdf: 946579 bytes, checksum: f220157d0bc0139c4a4a3f100c3937cf (MD5)

Relationships

Parents:

This work has no parents.

Items