Development of effective environmentally-friendly approaches to control Alternaria blight and anthracnose diseases of Korean ginseng
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In ginseng fields, Alternaria blight, caused by Alternaria panax, and anthracnose, caused by Colletotrichum gloeosporoides, have become serious problems in Korea, and control of these diseases relies mainly on intensive applications of fungicides. In an effort to develop an effective environmentally-friendly control system, we utilized preventative control approaches including rain shelter shading plates and the removal of dead plants, as well as a curative control approach, such as the application of microbial agents. In the presence of rain shelter shading plates, the occurrence of Alternaria blight and anthracnose decreased significantly compared to that seen with polyethylene shading nets. In addition, the eradication of dead ginseng plants, which harboured abundant spores of the pathogens, significantly reduced the incidence of both diseases. In fields with rain shelter shading plates and in which dead plants were eradicated, four applications of a bioformulated product containing chitinolytic bacterial strains in a simple medium containing chitin provided control similar in effect to that observed with the application of the fungicide under low disease pressure. The efficacy of the bioformulated product was decreased slightly under severe disease pressure. These findings indicate that integration of the three disease management measures might constitute a new effective and environmentally-friendly system for the control of Alternaria blight and anthracnose in Korean ginseng fields.
KeywordsBiological control Chitinolytic bacteria Field sanitation Rain shading shelter plate
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (grant F00003).
- Kang, H.-S., Park, D.-S., Hwang, Y.-K., & Kim, S. (2007). Survey on pesticide use by Ginseng growers at Gangwon farmland in Korea. The Korean Journal of Pesticide Science, 11, 210–215.Google Scholar
- Kim, Y. H., Yu, Y. H., Cho, D. H., & Ohh, S. H. (1990). Occurrence of Alternaria blight and ginseng yield in different shades. Korean Journal of Plant Pathology, 6, 42–50.Google Scholar
- Kim, J., Lee, S. W., Min, J. Y., Bae, Y.-S., Shin, M. U., Kim, S. B., et al. (2007). Development of control system with fungicides against disease of ginseng plant. Research in Plant Disease, 13, 164–169.Google Scholar
- Lee, C. Y. (2007). Characterization of photosynthesis with growing stages by different shading materials in Panax giseng C A. Meyer. Korean Journal of Medicinal Crop Sciences, 15, 276–284.Google Scholar
- Li, T. S. C., Utkhede, R. S., & Wardle, D. A. (1997). Chemical and biological control of leaf blight and root rot caused by Phytophthora cactorum in American ginseng. Canadian Journal of Plant Pathology, 19, 297–300.Google Scholar
- Li, X., Han, J. S., Jin, X., Yin, D., & Choi, J. E. (2008). Control of Alternaria leaf blight of ginseng by microbial agent and fungicides. Research in Plant Disease, 14, 102–106.Google Scholar
- McPartland, J., & Hosoya, T. (1998). Species of Colletotrichum on ginseng (Panax). Mycotaxon, 67, 3–8.Google Scholar
- Ohh, S. H. (1981). Diseases of Ginseng: environmental and host effect on disease outbreak and growth of pathogens. Korean Journal of Ginseng Science, 5, 73–84.Google Scholar
- Protor, J. T. A. (1996). Ginseng: Old crop, new directions. In J. Janick (Ed.), Progress in new crops (pp. 565–577). Arlington: ASHS.Google Scholar