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Screening of Seed Treatment Fungicide for Control of Damping-off caused by Rhizoctonia solani on Panax ginseng
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 Title & Authors
Screening of Seed Treatment Fungicide for Control of Damping-off caused by Rhizoctonia solani on Panax ginseng
Shin, Jeong-Seop; Lee, Seung-Hwan; Cho, Hye-Sun; Cho, Dae-Hui; Kim, Kyoung-Ju; Hong, Tae-Kyun; Park, Chol-Soo; Lee, Seong-Kye; Jung, Hee-Young;
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 Abstract
Damping-off is a critical disease on ginseng seedling, which caused by the fungal pathogen Rhizoctonia solani. The disease has been prevented by tolclofos-methyl for the last 20 years. However, the tolclofos-methyl usually detected on the harvested roots of 6-year-old ginseng. Herein, we tried to select an alternative pesticide which not only must be safe but also efficiently inhibits the fungal pathogen. Four fungicides (fludioxonil, flutolanil, pencycuron, and thifluzamide) were applied to their inhibition efficacy against the pathogen. In in vitro test, fludioxonil treatment showed 80% inhibition activity for 25 days. Thifluzamide and flutolanil showed the activity for 10 days. Pencycuron showed for 1 days. In addition, the fludioxonil was more effective to control the pathogen comparing to other three fungicides in field. The incidence of damping-off was reduced to 71% by fludioxonil treatment. The level of the fungicide residue in seedling was 0.44 mg/kg, which value will be a negligible level in final products after 5 years. Consequently, the fludioxonil is a conceivable alternative for tolclofos-methyl to cope with R. solani.
 Keywords
Damping-off;Fludioxonil;Panax ginseng;Rhizoctonia solani;Seed treatment;
 Language
Korean
 Cited by
1.
방선균 A3265 균주에 의한 인삼 잘록병의 방제,우이음;이강선;이인경;최재을;윤봉식;

한국균학회지, 2016. vol.44. 3, pp.193-195 crossref(new window)
 References
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Cho, D. H., J. Y. Kang and Y. H. Yu (2004) Anastomosis group, pathogenicity and growth characteristics of Rhizoctonia solani causing damping off on Panax ginseng. Korean J. Ginseng Res. 28(4):183-190. crossref(new window)

2.
Cho, D. H. and Y. H. Yu (2005) Effect of fludioxonil, flutolanil, and thifluzamide on suppression of damping-off caused by Rhizoctonia solani on Panax ginseng. Korean J. Ginseng Res. 29(4):185-191. crossref(new window)

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