The Plant Pathology Journal

The Korean Society of Plant Pathology (한국식물병리학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of Control Efficacy of Biocontrol Agent, Epicoccosorus nematosporus on Eleocharis kuroguwai in the Field

  • Hong, Yeon-Kyu (National Yeongnam Agricultural Experiment Station（NYAES）, Rural Development Adminstration（RDA)) ;
  • Cho, Jae-Min (National Yeongnam Agricultural Experiment Station（NYAES）, Rural Development Adminstration（RDA) ;
  • Uhm, Jae-Youl (Agricultural Biology Division, Kyungpook National University) ;
  • Lee, Bong-Choon (National Yeongnam Agricultural Experiment Station（NYAES）, Rural Development Adminstration（RDA) ;
  • Hyun, Jong-Nae (National Yeongnam Agricultural Experiment Station（NYAES）, Rural Development Adminstration（RDA) ;
  • Hwang, Jae-Bok (National Yeongnam Agricultural Experiment Station（NYAES）, Rural Development Adminstration（RDA) ;
  • Kim, Soon-Chul (National Yeongnam Agricultural Experiment Station（NYAES）, Rural Development Adminstration（RDA))
  • Published : 2003.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

This study was conducted to determine the efficacy of Epicoccosorus nematosporus for the control of Eleocharis kuroguwai and to evaluate the meteorological factors which affect weeding efficacy in field conditions for three years (1996-1998). The best time to control E. kuroguwai with E. nematosporus as a biological control agent in the field was in July, when temperature ranged from 20.4 to $23.4^{\circ}C$; the surface wetness duration was 12.6-16.1 hours, and application time of 6:00 p.m. and 8:00 p.m.; and weeding efficacy was 81-90%. On 10 June 1996 in Milyang area, where the field experiments were performed, mean temperature was $16.5^{\circ}C$ with 11.3 hours of dew duration. Meanwhile, on 20 Aug. 1996 the temperature was $21.3^{\circ}C$ with 15.4 hours of dew duration. During these periods, the weeding efficacy was recorded at 61.8 and 60.8%, respectively. Time required for complete plant death was 25.8 and 25.6 days at application times 10 June and 20 Aug., respectively. At the time of application on 7,18, and 27 July 1996, mean temperature was 20.4-$23.4^{\circ}C$ with 12.6-16.5 hours of dew duration. The weeding efficacies of these periods were very hi일 with 81.4-90.8%. Three years of field observations from 1996 to 1998 showed that infection in the field can occur at any time through the summer season, although total infection rates vary between months and between years. In 1996, plant infection rapidly increased from 56% on 30 June, 82.4% on 15 July, 94.6% on 15 August, and 92.8% on 15 September under favorable meteorological conditions such as minimum temperature of $17.6^{\circ}C$ and maximum temperature of $27.1^{\circ}C$, with 86% relative humidity and 977.5 mm of rainfall during E. kuroguwai growing season. However, in 1997, the disease incidence was very low because of unfavorable weather conditions brought about by the hot temperature and the low amount of rainfall at 321.5 mm. Disease progress was slow from 24.4% on 30 June to 49.2% at the end of the growing season.

Keywords

References

  1. Agrios, G. N. 1978. Plant Pathology, 2nd. ed. Academic Press, NewYork,703 p
  2. Baker, K. F. and Cook, R. J. 1974. Biological Control of Plant Pathogens. Freeman,San Francisco, 433 p
  3. Britton, K. O. 1993. Anthracnose infection of dogwood seedlings exposed to natural inoculumin western North Carolina. Plant Dis. 77:34-37 https://doi.org/10.1094/PD-77-0034
  4. Colhoun,J. 1973. Effects of environmental factors on plant disease. Annu. Rev. Phytopathology. 11:343-364 https://doi.org/10.1146/annurev.py.11.090173.002015
  5. Colhoun, J. 1979. Predisposition by the environment. pp. 75-96 In: Horsfall, J. G. and Cowling, E. B. eds. Plant Disease: An advanced Treatise. Vol. 4. How pathogens Induce Disease. Academic Press,New York
  6. Cowling E. B. 1978. Agricultural and forest practices that favors epidemics. pp. 361-381 In: Horsfall, J. G. and Cowling, E. B. eds. Plant Disease: An advanced Treatise.Vol. 2 How Disease Develops in Populations. Academic Press,New York
  7. Day, P. R. 1974. Genetics ofHost-Parasite Interaction. Freeman, San Fransisco. 238 p
  8. Hong,Y. K., Cho,J.M., Kim,J.C. and Uhm,J.Y. 1995. Identification, pathogenicity and host range of a potential bioherbicide, Epicoccosorus nematosporus, causing fingerprint stem blight on water chestnut, Eleocharis kuroguwai. Korean J. Plant Pathol. 12:58-65
  9. Hong,Y. K., Cho, J. M., Kim,J. C. and Uhm,J.Y. 1996. Identification, pathogenicity and host range of a potential Epicoccosorus nematosporus, causing fingerprint stem blight on water chestnut, Eleocharis kuroguwai. Korean J. Plant Pathol. 12:58-65
  10. Hong, Y. K., Cho, J. M., Lee, B. C., Uhm, J. Y. and Kim, S. C. 2002a. Factors affecting sporulation, germination and appressoria formation of Epicoccosorus nematosporus as a mycoherbicide under controlled environment. Plant Pathol. J. 18:50-53 https://doi.org/10.5423/PPJ.2002.18.1.050
  11. Hong, Y. K., Hyun, J. N., Cho, J. M., Uhm, J. Y. and Kim, S. C. 2002b. Factors affecting sporulation of a mycoherbicide, Epicoccosorus nematosporus, on the lesion of Eleocharis kuroguwai. Plant Pathol. J. 18:81-84 https://doi.org/10.5423/PPJ.2002.18.2.081
  12. Hong, Y. K., Cho, J. M., Ryu, K. L., Shin, D. B. and Kim, S. C. 2002c. The suitable cultural conditions for inoculum production of Epicoccosorus nematosporus as a mycoherbicide agent. Kor. J. Weed Sci. 22:61-66
  13. Hong, Y. K., Ryu, K. L., Hyun, J. N., Uhm, J. Y. and Soon-Chul Kim. 2002d. Distribution and alteration of fingerprint stem blight disease of Eleocharis kuroguwai caused by Epicoccosorus nematosporus, in Korea. Plant Pathol. J. 18:152-155 https://doi.org/10.5423/PPJ.2002.18.3.152
  14. Hong, Y. K., Cho, J. M., Uhm, J. Y. and Ryu, K. R. 1997. Potential application of Epicoccosorus nematosporus for the control of water chestnut. Korean J. Plant Pathol. 13:167-171
  15. Hong, Y. K., Kim, J. C., Ryu, K. R. and Kim, S. C. 1991. Pathogenicity and some related characteristics of the fingerprint blight pathogen (Epicoccosorus nematosporus) attacking water chestnut (Eleocharis kuroguwai OhwiI). Korean Plant Pathology Newsletter 2:47 (abstract)
  16. Hong, Y. K., Kim, J. C. and Lee, S. K. 1992. Biological control of rice weed, water chestnut (Eleocharis kuroguwai), using the fingerprint stem blight pathogen (Epicoccosorus nematosporus). Korean Plant Pathology Newsletter 3:75 (abstract)
  17. Hong, Y. K., Shin, D. B., Song, S. B., Lee, B. C. and Lee, D. C. 2001. Effect of some pesticides on the fungus Epicoccosorus nematosporus and synergistic effect in combination with herbicides on Eleocharis kuroguwai control in rice paddy field. Kor. J. Weed Sci. 21:365-372
  18. Hong, Y. K., Song, S. B., Lee, D. C. and Kim, S. C. 2002. Biological weed control with plant pathogenic microorganisms. Kor. J. Weed Sci. 22:1-14
  19. Hong, Y. K., Song, S. B., Lee, B. C., Shin, D. B. and Lee, D. C. 2002. Isolation of host specific fungal isolate YK201 to bulrush (Scirpus hotarui Ohwi) and weeding effect of the plants caused by natural infection in paddy field Kor. J. Weed Sci.22: 55-60
  20. Makowski, R. M. D. 1993. Effect of inoculum concentration, temperature, dew period, plant growth stage on disease of round-leaved mallow and velvetleaf by Colletotrichum gloeosporioides f. sp. malvae. Phytopathology 83:1229-1234 https://doi.org/10.1094/Phyto-83-1229
  21. Makowski, R. M. D. and Mortensen, K. 1989. Colletotrichum gloeosporioides f. sp. malvae as a mycoherbicide for roundleaved mallow (Malvae pusilla): Conditions for successful control in the field. pp. 513-522 In: Proc. 7th Int. Symp. Biol. Control Weeds. E. S. Delfosse, ed. Instituto Sperimentale per la Patologia Vegetale (Ministereo dell. Agricoltura e delle Foreste), Rome, Italy
  22. Mortensen, K. 1988. The potential of an endemic fungus, Colletotrichum gloeosporioides, for biological control of roundleaved mallow (Malvae pusilla) and velvetleaf (Abutilon theophrasti). Weed Sci. 36:473-478
  23. Ormeno-Nunez, J., Reeleder, F. D. and Watson, A. K. 1988. A foliar disease of field bindweed (Convolvulus arvensis) caused by Phomopsis convolvulus. Plant Dis. 72:338-342 https://doi.org/10.1094/PD-72-0338
  24. Reuveni, M., Tuzun, S., Cole, J. S., Siegel, M. R. and Kuc, J. 1986. The effects of plant age and leaf position on the susceptibility of tobacco to blue mold caused by Peronospora tabacina. Phytopathology 76:455-458 https://doi.org/10.1094/Phyto-76-455
  25. Stevens, R. B. 1960. Cultural practices in disease control. pp. 357-429 In: Horsfall, J. G. and Cowling, E. B. eds. Plant Disease: An advanced Treatise. Vol. 3. The diseased population: Epidemics and Control. Academic Press, New York
  26. Walker, J. C. 1969. Plant Pathology, 3rd. ed. McGraw-Hill, New York, 819 p. Yorinori, J. T. and Gazziero, D. L. P. 1990. Control of milkweed (Euphorbia heterophylla) with Helminthosporium sp. pp. 571-578. in Proc. 7th Int. Symp. Bio. Control Weeds. E. S. Delfosse, ed. Rome, Italy