CTRF
Current Research

2013 – 01a Increasing Winter Hardiness of Golf Greens and Fairways by Fall Fertilization Regime and Manipulation of Plant Hormones.

This project, coordinated by Dr. Eric Lyons at the University of Guelph involves research on “Increasing Winter Hardiness of Golf Greens and Fairways by Fall Fertilization Regime and Manipulation of Plant Hormones”. Winter survival of golf greens and fairways continues to be a major concern of golf courses throughout Ontario and Canada. There is acceptance within the research community that an important aspect of survival is the ability of the grass to maintain dormancy during thaw and refreeze events in late winter. The research will explore different management practices and their effect on the dormancy of golf greens and fairways experiencing thaw and refreeze events. The result of the research will be management recommendations regarding fertilizing and plant nutrition plant growth regulators and hormone manipulation to increase the winter survival of the golf course greens and fairways. This research will be completed by September of 2017.

 

2013 – 02a Identification of Drought Resistant Turfgrass Cultivars for Water Conservation.

The work and reports for this project will be performed under the direction of Jim Ross, Principal Investigator at Olds College and Dr. Eric Lyons Ph.D., Principal Investigator at the University of Guelph. Water use in urban environments is an important issue, and over the past few years watering restrictions have become commonplace. Restrictions on turfgrasses as landscape plants have been proposed in a number of jurisdictions in North America. This project will assist the turfgrass industry by: 1) helping the industry select turfgrass varieties that maintain green cover and playability with less water use, and 2) determining the actual water use of different turfgrass species and varieties at different mowing heights. Research is expected to be completed by September of 2016.

Drought tolerance annual report 02-16

Drought tolerance annual report 10-15

Drought tolerance annual report 02-15

Drought tolerance annual report 12-14

Report Nov 2013

 

2014 – 03a Management of Take all Patch in High Ph Soils

The work and reports for this project will be performed under the direction of Katerina Jordan, Principal Investigator at the University of Guelph. The disease take-all patch, caused by the fungus Gaeumannomyces graminis var. avenae has been a major issue on golf sites in Ontario and the prairie provinces, likely due to the alkaline soil pH levels found in those regions. The primary objectives of this study are to positively identify G. graminis from golf turf samples throughout Canada and to develop best management practices for the disease in areas with alkaline soils.

Report Apr 2018

Report Apr 2017

Report Sep 2016

Report March 2016

CTRF Report for TAP Project March and CTRF Report for TAP Project September 2015

Report Mar 2015

 

2015 – 02a Testing Lower Risk Fungicides Against Turf Diseases

This project, coordinated by Dr. Thomas Hsiang at the University of Guelph, is to investigate the use of lower risk fungicides against turfgrass diseases. The specific practical objective is to quantify the extent by which common diseases such as dollar spot, fusarium patch and snow molds can be reduced in lab and field tests, using different application regimes of low risk chemicals such as acetic acid (vinegar), borax, citric acid, garlic powder, hydrogen peroxide, iron sulfate, lime sulfur, phosphites, soaps, sodium chloride, and sulfur. This project will be completed in April 2018.

Report Feb 2018

Report Sep 2017

Report Feb 2017

September 2016 update

CTRF Progress Progress Report (April 1, 2016 covering the period Oct 1, 2015 to Feb 15, 2016)

 

2016 – 02a The Effect of Snow Cover and Anti-Transpirants on the Persistence of Snow Mould Fungicides

The objective of this project, coordinated by Dr. Paul Koch at the University of Wisconsin, is to determine the rate of degradation of fungicides chlorothalonil and propiconazole applied alone or as a mixture with an anti-transpirant under constant snow cover and in the complete absence of snow. It will also correlate the fungicide concentrations on the leaf blades sampled from the field with the level of disease symptoms on creeping bentgrass plants inoculated with snow mould fungi incubated in a growth chamber. The work will be completed in June 2019.

Spring 2018 Report

Fall 2017 Report

February 2017 Progress Report

 

2017 – 02a Foliar Applications of N and K for improving Cold Tolerance of annual bluegrass (Poa annua L.)

Currently there is conflicting information on the effects of Nitrogen (N) focused fall fertility programs for improving cold tolerance during the acclimation and spring recovery (deacclimation) time-frames. In general, the literature shows a trend of positive effect for improving frost hardiness during the acclimation period with N applications (Taulavuori, et al., 2004). For example, early research by Carroll (1943) found fall application rates of N directly correlated with cold tolerance, and Carroll and Welton (1939) found high crown hydration levels were associated with increased risked to winter injury.

A granular-focused N and K trial at the PTRC found that applying 4.88gNm-2yr-1 at biweekly rates of 1.22gNm-2 in combination with 4.88 – 9.76 gKm-2yr-1 at biweekly rates of 1.22-2.44 gKm-2, resulted in optimum cold tolerance levels and good spring recovery on an annual bluegrass putting green. While the results were useful in determining the negative effects of too much or too little N and K applied during the fall acclimation process, the rates were too coarse to fine-tune a foliar-based fertility program. The proposed study aims to fine-tune these rates for superintendents that are using foliar-based fertility programs.

Report January 2018

Report September 2017