Super Journal: an online turf research resource
Super Journal is provided by the PACE Turf as a free public service to the turfgrass management community. Our mission is to provide an electronic venue for:
- Superintendents to publish results of their turf research projects and to share them with fellow turf managers.
- Turf researchers to rapidly publish and disseminate their experimental results.
- Superintendents who want assistance in designing, carrying out, interpreting and/or summarizing turf research experiments.
Please see our submission guidelines if you wish to have your report published in Super Journal, and our research guide for information on designing and implementing your own turf research project.
Superintendent collaboration in action: The kikuyugrass excellence summit
PACE Turf member Kevin Hutchins at Mission Viejo Country Club in Mission Viejo, California sponsored the first Kikuyugrass Excellence Summit in February, 2010, with a mission to improve kikuyugrass performance by enhancing communication among kikuyugrass superintendents and sharing their expert knowledge of kikuyugrass management. More than 25 golf course superintendents who currently manage kikuyugrass met to discuss all aspects of kikuyugrass management as a fine turf type for golf courses. The group has agreed to have periodic meetings in the future to further share ideas and test results.
Three documents were prepared for the Summit:
- Kikuyugrass Summit Mission Statement (44 KB pdf)
- Kikuyugrass Management Survey Results (156 KB pdf)
- Kikuyugrass Summit 2010 February 1, 2010 - Summary (131 KB pdf)
PACE Turf has setup a Kikuyugrass Working Group Forum that can be read by the public, but with posting in the forum restricted to PACE Turf members. Information updates will be posted in the forum and research results will be posted in Super Journal and other scientific and trade publications.
List of Attendees
| Name | JobTitle | Company |
| Bill Houlihan | Superintendent | Black Gold Golf Club |
| Brian Archbold | Superintendent | El Niguel Country Club |
| David Michael | Superintendent | Friendly Hills Country Club |
| Juan Maldonado | Superintendent | Glendora Country Club |
| Dennis Fowler | Superintendent | La Jolla Country Club |
| Sean Cincotta | Superintendent | Laguna Woods Golf Course |
| Matt Deuel | Superintendent | Las Posas Country Club |
| Arnie Peredia | Superintendent | Los Coyotes Country Club |
| Jose Prieto | Superintendent | Los Serranos Country Club |
| Bruce Duenow | Superintendent | Los Verdes Country Club |
| Robert Gluck | Superintendent | Mesa Verde Country Club |
| Kevin Hutchins | Superintendent | Mission Viejo Country Club |
| Ron Benedict | Superintendent | Newport Beach Country Club |
| Larry Stowell | Scientist | Pace Turf |
| Wendy Gelernter | Scientist | Pace Turf |
| Pat Gradoville | Superintendent | Palos Verdes Golf Club |
| Jim Pitman | Superintendent | Rolling Hills Country Club |
| Gus Nelson | Superintendent | San Clemente Golf Course |
| Rich Liddle | Superintendent | San Gabriel Country Club |
| David Zahrte | Superintendent | Santa Ana Country Club |
| Kurt Desiderio | Superintendent | Saticoy Country Club |
| Mike Wolpoff | Superintendent | Sea Cliff Country Club |
| Ken Graves | Superintendent | South Hills Country Club |
| Candice Combs | Superintendent | Torrey Pines Golf Course |
| Jim Baird | Extension Specialist | UC Riverside |
| Pat Gross | Director | USGA |
| Tim Wren | Superintendent | Yorba Linda Country Club |
Research on biorationals for control of nematodes
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Nematodes are causing increasing problems on golf course greens (read more here), and, with the cancellation of Nemacur (fenamiphos), there are few effective products available for their control. For this reason, we conducted a field study on the efficacy of several different biological control agents for control of nematodes — particularly the root knot nematode, Meloidogyne. We found that:
- An experimental product based on the beneficial bacterium Bacillus firmus had the best results, causing significant reductions in root knot nematodes (RKN) without any associated phytotoxicity
- The amino acid methionine also caused reductions in RKN, but also caused significant damage to bentgrass at the rate tested
- The other products tested included Biofence, which is based on ground mustard plant tissue) and Inoculaid (a mixture of beneficial bacteria). Neither of these products had an impact on nematode populations
Bottom line: Bacillus firmus, which has been shown in previous studies to have potential as a nematicidal agent, showed promise in this trial for control of root knot nematode. Further work is needed to confirm this, and to identify optimal use patterns. This product, which is under development at Bayer Environmental Sciences, is not yet available for sale, but if research continues to confirm its promise, we hope expect to see it made available very soon.
Project title: Biorational products for nematode control
Principal investigators: Larry Stowell, Ph.D., CPAg and Wendy Gelernter, Ph.D., PACE Turf LLC and Michael McClure, Ph.D., University of Arizona
Cooperator: Troy Mullane, Rancho Santa Fe Farms Golf Club, Rancho SAnta Fe, CA
Sponsor: PACE Turf LLC
Click here for the full report (206 KB pdf)
Video: Compaction relief
If one photo is worth 1,000 words, this video is priceless. Watch Dennis Fowler, La Jolla Country Club, California, get some relief from compaction that developed in USGA greens following several years of shallow (3 inches deep) aeration practices. To ease compaction, deep tine aeration was conducted. You can judge for yourself how effective the process was for breaking through the compaction layer and reducing compaction throughout the green.
The process utilized a Weidenmann Terra Spike GXi with 0.25 inch diameter solid tines to a depth between 6 and 8 inches. The equipment was operated by Matt Marsh for Larry Lane of Turf Time West, Inc.
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