Browse > Article
http://dx.doi.org/10.5423/RPD.2020.26.4.229

Field Validation of PBcast in Timing Fungicide Sprays to Control Phytophthora Blight of Chili Pepper  

Ahn, Mun-Il (EPINET Co., Ltd.)
Do, Ki Seok (NEXTON Co., Ltd.)
Lee, Kyeong Hee (Chungcheongbuk-do Agricultural Research and Extension Services)
Yun, Sung Chul (Department of Life Science and Biochemical Engineering, Sunmoon University)
Park, Eun Woo (Interdisciplinary Program in Agricultural and Forest Meteorology, Seoul National University)
Publication Information
Research in Plant Disease / v.26, no.4, 2020 , pp. 229-238 More about this Journal
Abstract
Field validation of PBcast, an infection risk model for Phytophthora blight of pepper, was conducted through a designed field experiment in 2012 and 2013. Conduciveness of weather conditions at 26 locations in Korea in 2014-2017 was also evaluated using PBcast. The PBcast estimated daily infection risk (IR) of Phytophthora capsici based on weather and soil texture data. In the designed filed experiment, four treatments including routine sprays at 7-day intervals (RTN7), forecast-based sprays when IR reached 200 (IR200) and 224 (IR224), and no spray (CTRL) were compared in terms of disease incidence and number of sprays recommended for disease control. In 2012, IR had reached over 200 twice, but never reached 224. In 2013, IR had reached over 200 three times and once higher than 224. The RTN7 plots were sprayed 17 and 18 times in 2012 and 2013, respectively. Weather conditions throughout the country were generally conducive for Phytophthora blight and 3-4 times of fungicide sprays would have been reduced if the PBcast forecast information was adopted in the decision-making for fungicide sprays. In conclusion, the PBcast forecast would be useful to reduce fungicide applications without losing the disease control efficacy to protect pepper crop from Phytophthora blight.
Keywords
Chili pepper; Control efficacy; Disease forecast; PBcast model; Phytophthora capsici;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Bernhardt, E. A. and Grogan, R. G. 1982. Effect of soil matric potential on the formation and indirect germination of sporangia of Phytophthora parasitica, P. capsici, and P. cryptogea. Phytopathology 72: 507-511.   DOI
2 De Wolf, E. D. and Isard, S. A. 2007. Disease cycle approach to plant disease prediction. Annu. Rev. Phytopathol. 45: 203-220.   DOI
3 Do, K. S., Kang, W. S. and Park, E. W. 2012. A Forecast model for the first occurrence of phytophthora blight on chili pepper after overwintering. Plant Pathol. J. 28: 172-184.   DOI
4 Duniway, J. M. 1976. Movement of zoospores of Phytophthora cryptogea in soils of various textures and matric potentials. Phytopathology 66: 877-882.   DOI
5 Duniway, J. M. 1979. Water relations of water molds. Annu. Rev. Phytopathol. 17: 431-460.   DOI
6 Duniway, J. M. 1983. Role of physical factors in the development of Phytophthora diseases. In: Phytophthora: Its Biology, Taxonomy, Ecology, and Pathology, eds. by D. C. Erwin, S. Bartnicki-Garcia and P. H. Tsao, pp. 175-187. American Phytopathological Society, St. Paul, MN, USA.
7 Erwin, D. C. and Ribeiro, O. K. 1996. Phytophthora Diseases Worldwide. American Phytopathological Society, St. Paul, MN, USA. 592 pp.
8 Ferrin, D. M. and Mitchell, D. J. 1986. Influence of soil water status on the epidemiology of tobacco black shank. Phytopathology 76: 1213-1217.   DOI
9 Gent, D. H., Mahaffee, W. F., McRoberts N. and Pfender W. F. 2013. The use and role of predictive systems in disease management. Annu. Rev. Phytophthol. 51: 267-289.   DOI
10 Hong, S. and Kim, S. 2013. The analysis on the production and consumption of red-pepper in Korea. CNU J. Agric. Sci. 40: 405-410.
11 Hord, M. J. and Ristaino, J. B. 1992. Effect of the matric component of soil water potential on infection of pepper seedlings in soil infested with oospores of Phytophthora capsici. Phytopathology 82: 792-798.   DOI
12 Hughes, G. 2017. The evidential basis of decision making in plant disease management. Annu. Rev. Phytopathol. 55: 41-59.   DOI
13 Katsura, K. 1971. Some ecological studies on zoospore of Phytophthora capsici Leonian. Rev. Plant Prot. Res. 4: 58-70.
14 Kim, B.-S., Kwon, T.-R., Hwang, J.-E., Lee, J.-M., Park, D.-G., Ahn, J.-H. et al. 2010. Resistance to Phytophthora blight of commercial pepper cultivars in Korea. Res. Plant Dis. 16: 141-147. (In Korean)   DOI
15 Kim, C.-H. 2004. Review of disease incidence of major crops in 2003. Res. Plant Dis. 10: 1-7. (In Korean)   DOI
16 Korea Crop Protection Association. 2012. Guideline of Crop Protection Products. Korea Crop Protection Association, Seoul, Korea. 1352 pp. (In Korean)
17 Kwon, O. H., Lee, K.-H., Jang, K.-S., Kim, C.-Y., Jeon, S.-G., Kwon, J.-B. et al. 2017. Revaluation of phytophthora blight resistance cultivars by inoculation of isolates of Phytophthora capsici. Hortic. Sci. Technol. 35(Suppl. I): 199. (In Korean)
18 Schlub, R. L. 1983. Epidemiology of Phytophthora capsici on bell pepper. J. Agric. Sci. 100: 7-11.   DOI
19 The R Foundation. 2020. The R project for statistical computing. URL http://www.r-project.org/index.html [10 December 2020].
20 Ahn, M.-I., Kang, W. S., Park, E. W. and Yun, S.-C. 2008. Validation of an anthracnose forecaster to schedule fungicide spraying for pepper. Plant Pathol. J. 24: 46-51.   DOI
21 Bae, D. H. 2006. The disease epidemic of pepper anthracnose and importance of controlling anthracnose. In: Proceeding of Workshop for the Disease Epidemic and Control of Chili Pepper Anthracnose, ed. by National Institute of Agricultural Science and Technology, pp. 2-7. Rural Development Administration, Wanju, Korea. (In Korean)