Tis trial was also evaluated ‘on-site’ at four golf
courses, Olympia Fields Country Club in Olympia Fields, IL, Shadow Glen Golf Club in Olathe, KS, Karsten Creek Country Club in Stillwater, OK, and Tokatee Golf Club in McKenzie Bridge, OR. Year two of the trial’s top performers at the four locations include PST-0HR, Spectrum, and PSU-CBG1b. Diseases were evaluated at a few locations in year
two of the trial. Dollar spot ratings from two locations showed Spectrum, PVF-PV-1, DLFPS-AP-1084, Oakley, and Piper with the least damage. Pythium root rot was noted at Raleigh, NC, in 2022. PVF-PV-1, Oakley, and Piper were some of the highest rated entries.
Fairway/Tee Trial Te 2020 trial provides data on new experimental
entries that may become commercialized in the future. Tis latest trial consists of eighteen creeping entries and one colonial bentgrass entry, planted at eight standard trial locations and seven ancillary trial locations. Turfgrass quality collected and analyzed from
2022 was divided into two LPI groups, however with larger statistical separation among entries than with 2021 data. In 2021, Penncross, the well-established standard finished as a top turfgrass quality at two locations, possibly due to superior seedling establishment. In 2022, Penncross fell in performance as several new entries delivered promising results. Piper, Oakley, Spectrum, 007XL, and PVF-PV-1, all creeping bentgrasses, finished in the top statistical group in both LPI analyses. Musket, a colonial bentgrass,
performed well in one LPI group, finishing as the top turf quality performer at the Storrs, CT, Blacksburg, VA, and Quebec City, Quebec, sites. An ancillary trial at Fort Collins, CO, evaluating
performance under saline irrigation yielded small statistical differences in 2022. Tis site may require multiple years of high salt irrigation to separate entries. Contrary to the saline irrigation site, traffic
tolerance ancillary evaluations at Amherst, MA, showed great statistical significance in year two. Creeping bentgrasses PVF-PV-1 and Spectrum, along with the colonial bent Musket were top turf quality performers at Amherst. When traffic tolerance alone was considered, PST-R0DS, Piper, Spectrum, and DLF-AP-3084 showed the best performance. Disease resistance is an important feature of
any fairway or tee bentgrass and is a major need for golf course superintendents. Dollar spot, the most prevalent and concerning disease on golf course fairways, was noted at five locations in 2022 over the trial period. Typically, colonial bentgrasses display excellent dollar spot tolerance, which Musket did at four of those locations. Musket finished in the top statistical group for overall dollar spot tolerance (7.8, scale is 1-9, 9=no disease, LSD=0.8), but it is impressive that the creeping bents 007XL (8.0), DLF- AP-3084 (8.0), Spectrum (7.9), Piper (7.9), PVF-PV-1 (7.9), and PVF-PV-2 (7.9) finished with a higher overall dollar spot rating than Musket.
TPI Turf News July/August 2023
55
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100
