Full TGIF Record # 81709
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Publication Type:
Author(s):Hsiang, Tom
Author Affiliation:Department of Environmental Biology, University of Guelph
Title:Biological control of turfgrass snow molds with the fungus Typhula phacorrhiza
Source:Turfgrass Management in the Pacific Northwest. Vol. 4, No. 4, Fall 2001, p. 38-40.
# of Pages:3
Publishing Information:Sisters, OR: Turfgrass Connections
Keywords:TIC Keywords: Snow molds; Biological control; Disease control; Typhula phacorrhiza; Typhula blight; Disease profile; Competition; Microdochium patch
Abstract/Contents:"For the past six years, we have been working on a biological control system for turfgrass snow mold diseases. We started out in 1994 looking for better strains of a fungus that could suppress gray snow mold disease caused by the fungi Typhula ishikariensis and Typhula incarnata. Dr. Lee Burpee, formerly at Guelph, and Dr. Naoyuki Matsumoto in Japan had found that some strains of a fungus named Typhula phacorrhiza could inhibit gray snow mold disease. We collected strains of T. phacorrhiza from corn fields all over southern Ontario. By 1997, we had identified five strains out of several hundred that work as well at suppressing gray snow mold as conventional fungicides. This work during the first three years was supported by the Canadian Turfgrass Research Foundation with matching funds from the Ontario Ministry of Education. In 1998, we started on a new phase of this research with funding from the Canadian Turfgrass Research Foundation. This money was matched by Nu-Gro Corporation who are interested in commercialization of this product. Then funding from both organizations was matched by a federal program, the Natural Sciences and Engineering Research Council of Canada. As a result of the increased funding, we were able to expand the study to sites across Canada and begin more intensive work on biological processes involved in suppression. Although T. phacorrhiza can be found in abundance in corn fields after spring snow melt, the large majority of these isolates have little or no effect against gray snow mold. Since 1998, we have also tested and observed suppression of pink snow mold by T. phacorrhiza. Our continuing work is to develop ways of growing and formulating the inoculum of a select isolate of T. phacarrhiza (TP94671) that is antagonistic to both gray snow mold and pink snow mold, as well as studying the biology of the interactions. We are hoping for a registered product within two years formulated as a granular that can be applied with conventional turf management equipment."
Note:Includes map, "Trials sites for winter 2000-2001 to test the control of snow molds by a select isolate of Typhula phacorrhiza."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hsiang, T. 2001. Biological control of turfgrass snow molds with the fungus Typhula phacorrhiza. Turfgrass Manage. Pac. Northwest. 4(4):p. 38-40.
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