BIO Web Conf.
Volume 18, 2020IV All-Russian Plant Protection Congress with international participation “Phytosanitary Technologies in Ensuring Independence and Competitiveness of the Agricultural Sector of Russia”
|Number of page(s)||4|
|Published online||06 March 2020|
Effects of rolling and N-fertilization on dollar spot and Microdochium patch on golf greens in Scandinavia
NIBIO - Norwegian Institute of Bioeconomy Research, 4886 Grimstad, Norway
2 Botanisk Analysgrupp, 413 19 Göteborg, Sweden
3 Nyholt ApS, 5772 Kværndrup, Denmark
* Corresponding author: email@example.com
Dollar spot was officially documented in Scandinavia in 2013 and the spread and damage from this disease has increased during last years. In summer 2017, on the golf greens with red fescue (Vallda GC, Sweden) and with the mixture of red fescue, colonial bentgrass and annual bluegrass (Roskilde GC, Denmark) rolling 2 times per week reduced dollar spot 61% and 37% and rolling 4 times per week reduced dollar spot 95% and 54%, respectively. Thus, rolling 3-4 times per week can be recommended on golf greens with dollar spot pressure. In the experiment 2018 dollar spot was reduced 24% with increase in nitrogen from 150 to 240 kg ha-1 yr-1 on creeping bentgrass/annual bluegrass golf green (Kävlinge GK, Sweden). However, the increased N-rate lead to a higher degree Microdochium patch from 14% to 30%.
© The Authors, published by EDP Sciences, 2020
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