The Plant Pathology Journal

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

DOI QR Code

Improvement in Fungicidal Activity of Ethaboxam by a Non-ionic Surfactant, Polyoxyethylene Cetyl Ether

  • Shin Kwang-Hoon (Bayer CropScience Ltd. Business Development Division) ;
  • Kim Dal-Soo (LG Life Sciences Ltd., R&D Park) ;
  • Chun Sam-Jae (LG Life Sciences Ltd., R&D Park) ;
  • Park Eun-Woo (School of Agricultural Biotechnology, Seoul National University)
  • Published : 2006.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

Ethaboxam is a fungicide controlling plant diseases caused by Oomycetes. Efforts were made to improve its fungicidal activity applying formulation technology. Fungicidal activity of ethaboxam against cucumber downy mildew caused by Pseudoperonospora cubensis was improved by incorporating polyoxyethylene cetyl ether (PCE) in a wettable powder formulation. It was found that the optimum combination ratio of PCE and ethaboxam was 3:1, and a tank-mix of $150{\mu}g/ml$ of ethaboxam and $450{\mu}g/ml$ of PCE would be as good as the standard 25 % WP formulation diluted to $250{\mu}g/ml$ ethaboxam without PCE in controlling cucumber downy mildew. Based on this results, a wettable powder (WP) co-formulation containing 15% of ethaboxam and 45% of PCE was developed in this study, and tested for its performance in the fields. This co-formulation showed significant improvement in persistence of fungicidal activity and curative efficacy of ethaboxam against cucumber downy mildew. The improved control efficacy was also confirmed for control of grape downy mildew caused by Plasmopara viticola and potato late blight caused by Phytophthora infestans in the field tests.

Keywords

References

  1. Foy, C. L.1993. Progress and development in adjuvant use since 1989 in the USA. Pestic. Sci. 38:65-76 https://doi.org/10.1002/ps.2780380202
  2. Grayson B. T, Boyd, S. L., Sampson, A. J., Drummond, J. N. and Walter, D. 1995. Effect of adjuvants on the performance of the new cereal fungicide, metconazole. I Glasshouse trials. Pestic. Sci. 45:153-160 https://doi.org/10.1002/ps.2780450209
  3. Grayson, B. T., Webb, J. D., Batten, D. M. and Edwards, D. 1996a. Effect of adjuvants on the therapeutic activity of dimethomorph in controlling vine downy mildew. I. Survey of adjuvant types. Pestic. Sci. 46:199-206 https://doi.org/10.1002/(SICI)1096-9063(199603)46:3<199::AID-PS334>3.0.CO;2-N
  4. Grayson, B. T., Boyd, S. L. and Walter, D. 1996b. Effect of adjuvants on the therapeutic activity of dimethomprph in controlling vine downy mildew. II. Adjuvant mixtures, outdoor hardened vines and one-pack formulations. Pestic. Sci. 46:207-213 https://doi.org/10.1002/(SICI)1096-9063(199603)46:3<207::AID-PS335>3.0.CO;2-B
  5. Hall, F. R., Chapple, A. C., Downer, R. A., Kicrher, L. M. and Thacker, J. R. M. 1993. Pesticide application as affected by spray modifiers. Pestic. Sci. 38:123-133 https://doi.org/10.1002/ps.2780380207
  6. Kim, D. S., Chun, S. J., Jeon, J. J., Lee, S. W. and Joe, G. H. 2004. Synthesis and fungicidal activity of ethaboxam against Qomycetes. Pest Manag. Sci. 60:1007-1012 https://doi.org/10.1002/ps.873
  7. Kim, D. S., Lee, Y. S., Chun, S. J., Choi, W. B., Kim, G. T., Kang, K. G, Joe, G. H. and Cho, J. H. 2002. Ethaboxam: a new Oomycetes fungicide. In: Proc. Brighton Crop Protection Conference vol. I. pp. 377-382, British Crop Protection Council, Brighton
  8. Kim, D. S., Park, H. C., Chun, S. J., Yu, S. H., Choi, K. J., Oh, J. H., Shin, K. H., Koh, Y. J., Kim, B. S., Hahm, Y. I. and Chung, B. K. 1999. Field performance of a new fungicide ethaboxam against cucumber downy mildew, potato late blight, and pepper phytophthora blight in Korea. Plant Pathol. J. 15:48-52
  9. Kikrwood, R. C. 1993. Use and mode of action of aduvants for herbicides: A review of some current work. Pestic. Sci. 38:93-102 https://doi.org/10.1002/ps.2780380205
  10. Kikrwood, R. C.1999. Recent developments in our understanding of the plant cuticle as a barrier to the foliar uptake of pesticide. Pestic. Sci. 55:69-77 https://doi.org/10.1002/(SICI)1096-9063(199901)55:1<69::AID-PS860>3.0.CO;2-H
  11. Korea Crop Protection Association. 2005. Manual of pesticide use (in Korean). Samjeong Press, Seoul, 1015pp
  12. National Institute of Agricultural Science and Technology. 2000. Standards and Methods of Fungicide Trials. In: Evaluation Guideline of Registration Trial in Korea. pp 65-90, NIAST, Korea
  13. Sampson, A. J., Burnhams, A. F. and Grayson, B. T. 1995. Effect of adjuvants on the performance of the new cereal fungicides, metconazole. II Field trials. Pestic. Sci. 45:161-166 https://doi.org/10.1002/ps.2780450210
  14. Steurbaut, W. 1993. Adjuvants for use with foliar fungicides. Pestic. Sci. 38:85-91 https://doi.org/10.1002/ps.2780380204
  15. Yu, J. H., Choi, G. J., Lim, H. K., Kim, J. H. and Cho, K. Y. 2001. Influence of surfactants on foliar uptake of dimethomorph into cucumber plant and fungicidal activity to cucumber downy mildew. J. Korean Soc. Agric. Chern. Biotechnol. 44:109-115
  16. Zhang, X. Z., Ryu, K. Y, Kim, J. S., Cheon, J. U. and Kim, B. S. 2005. Changes in the sensitivity to inetalaxyl, dimethomorph and ethaboxam of Phytophthroa infestans in Korea. Plant Pathol. J. 21:33-38 https://doi.org/10.5423/PPJ.2005.21.1.033