Background : Every year, Damping-off is repeated in the germination time of ginseng on April to May. This study was carried out to find out the cause of damping-off and the optimum eco-friendly product for suppression of damping-off caused by Rhizoctonia solani on Panax ginseng. Methods and Results : Bikona (Bioagent), Lime-Sulfur Mixture, Lime-Bordeux Mixture, NaOcl, and Fludioxonil were tested in farmer's field located in Youngju and Bonghwa, Gyeongbuk. Experimental plots (20m×0.9m) of 4-year-old ginseng fields were artificially infested with 2kg and 3kg in fresh weight of inoculum in Youngju and Bonghwa, respectively. Growth characteristics in all the plots of eco-friendly product were similar and had no difference significantly. Damping-off incidences were 0.8% at the polt of NaOcl in Bonghwa, which showed the lowest in all the plots. Ginseng yield in the plot of NaOcl and Fludioxonil were 1.75 kg and 1.71 kg per 1.62 ㎡, which increased 10∼12% compared to the control plot. Conclusion : Sodium hypochlorite as eco-friendly materials for control of damping-off caused by Rhizoctonia solani in ginseng represented a similar performance with Fludioxonil and seems to be utilized in the farm.

• Myeong Hwan Jang(Punggi Ginseng Experiment Station, Gyeongbuk Agricultural Reaseach and Extension Services) | 장명환
• Jin Kook Choi(Punggi Ginseng Experiment Station, Gyeongbuk Agricultural Reaseach and Extension Services) | 최진국
• Duk Jong Ahn(Gyeongbuk Agricultural Reaseach and Extension Services) | 안덕종 Corresponding author
• Tae Ryong Kwon(Punggi Ginseng Experiment Station, Gyeongbuk Agricultural Reaseach and Extension Services) | 권태룡