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Title: Poacic acid suppresses dollar spot and snow mould in amenity turfgrass

Abstract

Plant‐based antifungal agents offer an alternative to synthetic fungicides in amenity turfgrass disease management. Poacic acid is a by‐product of the biofuel production process that has exhibited antifungal activity, and the objective of this research was to determine its ability to serve as an effective management tool for economically important turfgrass diseases such as dollar spot and snow moulds. In vitro and field tests were conducted in Wisconsin and Michigan, USA from 2015 to 2017 to determine the efficacy of poacic acid in suppressing the economically important turfgrass pathogens Clarireedia jacksonii and Microdochium nivale. Poacic acid demonstrated strong antifungal activity against both pathogens in vitro, inhibiting growth of C. jacksonii and M. nivale by 93% and 74% relative to nonamended media, respectively. Poacic acid reduced dollar spot in the field in one of two years, but failed to suppress snow mould when applied alone. Poacic acid was an effective mix partner for snow mould control when combined with a synthetic fungicide, an important attribute because no single fungicide currently on the market provides acceptable snow mould control under heavy disease pressure. Finally, future research should focus on improving poacic acid field efficacy so that it can be incorporated into plant‐basedmore » disease management strategies for amenity turfgrass.« less

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [1]
  1. Univ. of Wisconsin, Madison, WI (United States)
Publication Date:
Research Org.:
Great Lakes Bioenergy Research Center (GLBRC), Madison, WI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1579351
Alternate Identifier(s):
OSTI ID: 1573853
Grant/Contract Number:  
SC0018409; FC02‐07ER64494
Resource Type:
Accepted Manuscript
Journal Name:
Plant Pathology
Additional Journal Information:
Journal Volume: 69; Journal Issue: 1; Journal ID: ISSN 0032-0862
Publisher:
British Society for Plant Pathology
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; biological control; fungi; poacic acid; turfgrass

Citation Formats

Kabbage, M., Piotrowski, J. S., Thill, E., Westrick, N. M., Ralph, J., Hockemeyer, K., and Koch, P. L. Poacic acid suppresses dollar spot and snow mould in amenity turfgrass. United States: N. p., 2019. Web. doi:10.1111/ppa.13099.
Kabbage, M., Piotrowski, J. S., Thill, E., Westrick, N. M., Ralph, J., Hockemeyer, K., & Koch, P. L. Poacic acid suppresses dollar spot and snow mould in amenity turfgrass. United States. doi:10.1111/ppa.13099.
Kabbage, M., Piotrowski, J. S., Thill, E., Westrick, N. M., Ralph, J., Hockemeyer, K., and Koch, P. L. Wed . "Poacic acid suppresses dollar spot and snow mould in amenity turfgrass". United States. doi:10.1111/ppa.13099.
@article{osti_1579351,
title = {Poacic acid suppresses dollar spot and snow mould in amenity turfgrass},
author = {Kabbage, M. and Piotrowski, J. S. and Thill, E. and Westrick, N. M. and Ralph, J. and Hockemeyer, K. and Koch, P. L.},
abstractNote = {Plant‐based antifungal agents offer an alternative to synthetic fungicides in amenity turfgrass disease management. Poacic acid is a by‐product of the biofuel production process that has exhibited antifungal activity, and the objective of this research was to determine its ability to serve as an effective management tool for economically important turfgrass diseases such as dollar spot and snow moulds. In vitro and field tests were conducted in Wisconsin and Michigan, USA from 2015 to 2017 to determine the efficacy of poacic acid in suppressing the economically important turfgrass pathogens Clarireedia jacksonii and Microdochium nivale. Poacic acid demonstrated strong antifungal activity against both pathogens in vitro, inhibiting growth of C. jacksonii and M. nivale by 93% and 74% relative to nonamended media, respectively. Poacic acid reduced dollar spot in the field in one of two years, but failed to suppress snow mould when applied alone. Poacic acid was an effective mix partner for snow mould control when combined with a synthetic fungicide, an important attribute because no single fungicide currently on the market provides acceptable snow mould control under heavy disease pressure. Finally, future research should focus on improving poacic acid field efficacy so that it can be incorporated into plant‐based disease management strategies for amenity turfgrass.},
doi = {10.1111/ppa.13099},
journal = {Plant Pathology},
number = 1,
volume = 69,
place = {United States},
year = {2019},
month = {9}
}

Journal Article:
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Works referenced in this record:

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