Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
권호 표지
DOI QR코드

DOI QR Code

Control Effect on Dollar Spot Disease Caused by Sclerotinia homoeocarpa under Different Application Rates and Intervals with Two Mixed Fungicides

혼용된 2종의 살균제 살포 농도 및 간격에 따른 잔디 동전마름병 방제효과

  • Chang, Seog-Won (Department of Golf Course Management, Korea Golf University) ;
  • Jung, Suk-Woo (Department of Golf Course Management, Korea Golf University) ;
  • Kim, Sehun (Department of Golf Course Management, Korea Golf University) ;
  • Park, Jong-Hyun (Department of Golf Course Management, Korea Golf University) ;
  • Lee, Ji-Young (Division of Golf Course Management, Park Vally Golf Course)
  • 장석원 (한국골프대학 골프코스매니지먼트과) ;
  • 정석우 (한국골프대학 골프코스매니지먼트과) ;
  • 김세훈 (한국골프대학 골프코스매니지먼트과) ;
  • 박종현 (한국골프대학 골프코스매니지먼트과) ;
  • 이지영 (파크밸리 골프클럽 코스관리부)
  • Received : 2013.10.09
  • Accepted : 2013.12.02
  • Published : 2013.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Dollar spot caused by Sclerotinia homoeocarpa F.T. Benn. is a common and economically important turfgrass disease in South Korea. Fungicides mixture (propiconazole 25% + boscalid 47%) treatments, showing synergistic interaction, with three application rates (low: 50.3 ml $10a^{-1}$ and 97.5 g $10a^{-1}$, intermediate: 67.0 ml $10a^{-1}$ and 130.0 g $10a^{-1}$, and high: 100.5 ml $10a^{-1}$ and 195.0 g $10a^{-1}$) and two application intervals (10 and 15 days) were evaluated for control of dollar spot in creeping bentgrass golf course putting green. In both nontreated plots of field A and B, the disease has severed as 48.3 and 60.0% after the pathogen inoculation. Two fungicide mixture treatments showed significantly higher the disease control effect than a single fungicide treatment (propiconazole). Field A which showed more the disease severity but the fungicide still showed acceptable level of the disease efficacy (89.0%), significant differences in control value were not detected among treatments. The results suggest that the lower application rate of two fungicides mixture treatments may reduce the dollar spot disease severity in creeping bentgrass golf course putting green.

Sclerotinia homoeocarpa F.T. Bennett에 의한 동전마름병은 우리나라 골프장에서 지역에 관계없이 일반적이며 경제적으로 가장 중요한 잔디 병 중 하나이다. 크리핑벤트그래스로 조성된 골프장 그린에서 propiconazole과 boscalid를 혼합제로 하여 방제효과를 평가하였다. 혼합제의 약량은 기준량과 기준량의 1/2량, 2/3량으로 하였고, 살포간격은 각각 10일과 15일 간격으로 3회 처리하였다. 동전마름병은 2개 포장의 무처리구에서 각각 반복별 평균 48.3, 60.0%의 발생을 보였다. 각 처리구는 1개의 처리구(기준량의 1/2 처리구로 15일 간격 살포)를 제외하고 처리별 통계적 유의성은 없었다. 따라서 현장에서 농약회사에서 추천하는 기준량의 농도보다 낮은 농도(기준량의 2/3 및 1/2 농도)로 15일 간격으로 살포하게 될 경우 기준량에 준하는 약효를 얻을 수 있으므로 살포 농약량, 인력, 병원균의 약제 저항성 등을 낮추는 효과를 보일 것으로 예상된다.

Keywords

References

  1. Burpee, L. and Latin, R. 2008. Reassessment of fungicide synergism for control of dollar spot. Plant Dis. 92:601-606. https://doi.org/10.1094/PDIS-92-4-0601
  2. Chang, S.W., Chang, T.H., Hong, J.K., Park, J.H. and Jung, S.W. 2011. Vegetative compatibility grouping of Sclerotinia homoeocarpa isolates infecting turfgrass in South Korea. Asian J. Turfgrass Sci. 25:171-176.
  3. Chang, S. W., Jung, S-W., Kim, S., Park, J-H. and Lee, J-Y. 2012. Synergistic interaction of fungicides in mixtures under different conditions of dollar spot disease caused by Sclerotinia homoeocarpa. Asian J. Turfgrass Sci. 26:96-101.
  4. Cole, H.B., Taylor, B. and Duich, J. 1968. Evidence of differing tolerances to fungicides among isolates of Sclerotinia homoeocarpa. Phytopathology 58:683-686.
  5. Couch, H.B. 1995. Diseases of turfgrasses, 3rd ed. Krieger Publishing Co., Malabar, FL, USA.
  6. Couch, H. B. and Smith, B.D. 1991. Synergistic and antagonistic interactions of fungicides against Pythium aphanidermatum on perennial ryegrass. Crop Prot. 10:386-390. https://doi.org/10.1016/S0261-2194(06)80029-3
  7. Detweiler, A.R., Vargas, J.M. and Danneberger, T.K. 1983. Resistance of Sclerotinia homoeocarpa to iprodione and benomyl. Plant Dis. 67:627-630. https://doi.org/10.1094/PD-67-627
  8. DeWaard, M.A. 1996. Synergism and antagonism in fungicide mixtures containing sterol demethylation inhibitors. Phytopathology 86:1280-1283.
  9. Frederick, E.K., Throssell, C.S., Bischoff, M. and Turco, R.F. 1996. Fate of vinclozolin in creeping bentgrass turf under two application frequencies. Bull. Environ. Contam. Toxicol. 57:391-397. https://doi.org/10.1007/s001289900203
  10. Gisi, U. 1996. Synergistic interaction of fungicides in mixtures. Phytopathology 86:1273-1279.
  11. Hewitt, H.G. 1998. Fungicides in Crop Protection. CAB International, New York, USA.
  12. Jo, Y.K., Chang, S.W., Boehm, M. and Jung, G. 2008. Rapid development of fungicide resistance by Sclerotinia homoeocarpa on turfgrass. Phytopathology 98:1297-1304. https://doi.org/10.1094/PHYTO-98-12-1297
  13. Kim, J.H., Choi, H.Y., Shim, G.Y., and Kim, Y.H. 2010. Chemical resistance and control of dollar spot caused by Sclerotinia homoeocarpa on turfgrass of golf courses in Korea. Kor. Turfgrass Sci. 24:170-175. (In Korean)
  14. Koch, P.L., Grau, C.R., Jo, Y.K. and Jung, G. 2009. Thiophanatemethyl and propiconazole sensitivity in Sclerotinia homoeocarpa populations from golf courses in Wisconsin and Massachusetts. Plant Dis. 93:100-105. https://doi.org/10.1094/PDIS-93-1-0100
  15. Kosman, E. and Cohen, Y. 1996. Procedures for calculating and differentiating synergism and antagonism in action of fungicide mixtures. Phytopathology 86:1263-1272.
  16. Latin, R. 2006. Residual efficacy of fungicides for control of dollar spot in creeping bentgrass. Plant Dis. 90:571-575. https://doi.org/10.1094/PD-90-0571
  17. Putnam, A.I., Jung, G. and Kaminski, J.E. 2010. Geographic distribution of fungicide- insensitive Sclerotinia homoeocarpa isolates from golf courses in the northern United States. Plant Dis. 94:186-195. https://doi.org/10.1094/PDIS-94-2-0186
  18. SAS Institute Inc. 1999. SAS/STAT User' Guide, Version 7-1. SAS Institute, Cary, NC, USA.
  19. Shim, G.Y., Min, G.Y., Shin, H.D. and Lee, H.J. 2000. Occurrence of dollar spot caused by Sclerotinia homoeocarpa in turfgrass of golf course in Korea. Kor. Turfgrass Sci. 14:241-250. (In Korean)
  20. Shim, G.Y., Min, G.Y., Shin, H.D. and Lee, H.J. 2001. Occurrence of chemical resistance and control of dollar spot caused by Sclerotinia homoeocarpa in turfgrass of golf course in Kora. Kor. Turfgrass Sci. 15:1-8. (In Korean)
  21. Smith, J.D., Jackson, N. and Woolhouse, A.R. 1989. Fungal diseases of amenity turf grasses. E and F. N. Spon, New York, USA.
  22. Warren, C.G., Sanders, P.L., Cole, H. and Duich, J.M. 1977. Relative fitness of benzimidazole-tolerant and cadmiumtolerant populations of Sclerotinia homoeocarpa in absence and presence of fungicides. Phytopathology 67:704-708.

Cited by

  1. A Detail Investigation of Major Diseases Occurrence and Pathogen Population on Turfgrass Cultivation in Nationwide vol.3, pp.2, 2014, https://doi.org/10.5660/WTS.2014.3.2.121
  2. Evidence for Genetic Similarity of Vegetative Compatibility Groupings in Sclerotinia homoeocarpa vol.30, pp.4, 2014, https://doi.org/10.5423/PPJ.OA.08.2014.0075