48 sTERF ongoing projects
Identification and risk assessment of dollar spot on Scandinavian golf courses Project period: april 2014 - december 2017 Funding (kSEK) 2014 2015 2016 Total STERF 165 186 0 351 Other sources 305 136 0 441 TOTAL 470 322 0 792
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To compare Scandinavian and American Sclerotinia homoeocarpa isolates. Based on results from this project, the Integrated Pest Management principles, the BSc project and literature studies, develop a STERF fact-sheet on dollar spot risk assessment.
Talks at conferences, seminars, meetings etc. in 2016 15 Jan.: Ny forskrift om plantevernmidler. Konsekvenser for golf- og fotballanlegg.
Gresskurs, Lingfield, England (A. Kvalbein).
Principal investigator / contact person Tatsiana Espevig, The Norwegian Institute of Bioeconomy Research (NIBIO),
Dep. Urban Greening and Environmental Engineering, Turfgrass Research Group, Landvik, Reddalsveien 215, 4886 Grimstad, Norway. Phone: +47 406 23 778. E-mail: tatsiana.espevig@nibio.no Co-applicants Agnar Kvalbein and Trygve S. Aamlid, NIBIO Landvik (Norway) May Bente Bruberg, NIBIO Plant Health and Plant Protection (Norway) Åslög Dahl and Mariana Usoltseva, Botanisk Analysgrupp / Gothenburg University (Sweden) Karin Normann, Asbjørn Nyholt ApS (Denmark) Jo Anne Crouch, Systematic Mycology & Microbiology Lab, US Dept. of Agriculture (USA) Sandra Wright and Anita Ejderdun, Dept. of Electronics, Mathematics and Natural Sciences
University of Gävle (Sweden) Project objectives
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To identify and monitor dollar spot on 2-3 golf courses in Norway, Denmark and Sweden and provide scientific documentation in the form of a BSc dissertation on dollar spot distribution on Scandinavian golf courses with respect to geography, climate conditions, type of turf, turfgrass species, maintenance practices etc.
11 Nov.: Golfforum / NGF Anleggsseminar, Fornebu, Norway (A. Kvalbein). Project summary and status as of 1 January 2017
Dollar spot is a common disease (caused by the fungus Sclerotinia homoeocarpa) on amenity turf in Australasia, North and Central America and continental Europe. During recent years, the disease has been identified on many golf courses in Scandinavia since it was first officially documented in Norway in summer 2013 (Espevig et al., 2015) and in Sweden in 2014 (Espevig et al., in press). Thus, there is need for risk assessment of dollar spot. From July to October 2014, around 30 samples of turf with dollar spot symptoms were collected in Sweden, Denmark and Norway, and presence of S. homoeocarpa was confirmed on seven Swedish, four Danish and one Norwegian golf course. Molecular analysis of the isolates showed that they could be divided into two genetic groups (with 97.6% similarity between the groups). Group 1 consisted of all Danish and most of the Swedish isolates, while Group 2 contained the Norwegian isolate and two Swedish isolates. The consensus internal transcribed regions (ITS) of the ribosomal DNA of the first group was identical to ITS previously reported in e.g. the USA (GenBank), while the second group clearly constituted a distinct variant or perhaps even a new species of Sclerotinia. In December 2014, we also received four isolates from cool-season grasses and two isolates from warm-season grasses from the Systematic Mycology & Microbiology Lab, US Department of Agriculture, for comparison. These