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KMID : 1098420140220060483
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Korean Journal of Medicinal Crop Science
2014 Volume.22 No. 6 p.483 ~ p.488
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Effect of Concentration and Time of Lime-Bordeaux Mixture on Growth and Disease of Four and Five Year Old Ginseng (Panax ginseng C. A. Meyer)
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Jung Won-Kwon
Ahn Deok-Jong
Choi Jin-Kook
Ryu Tae-Suk
Jang Myeong-Hwan
Kwon Tae-Ryoung
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Abstract
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Lime-bordeaux mixture (LBM) has been used instead of pesticides in ginseng field and orchard since the 1960’s in Korea. In this experiment, LBM was made with different concentrations and sprayed in the field of ginseng for eco-friendly cultivation. Growth characteristics and disease such as alternaria blight, anthracnose, and gray mold were investigated in 4-5 year old ginseng after spraying LBM. LBM caused a little damage on leaf when it was sprayed at the time of leafing stage, late April and early May. Root weights of five-year-old ginseng were 43.1 ~ 51.5 g and 41.2 ~ 46.6 g in the plot of mid-April and mid-May treatments, respectively. These growth levels were further reduced as compared with that of the chemicals treatment plot. The rate of diseases in the plot of 6-6 and 8-8 ratio were 0.0 ~ 4.8% and 0.0 ~ 4.4%, respectively,
which was similar with that in the plot of chemical control for alternaria blight and anthracnose. However, LBM had little effect on controling gray mold. It showed lower control effect in the plot of 4-4 ratio than that of chemical control. This
result will be expected to be a useful guide that can be used in the field to the farmers of the ginseng.
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KEYWORD
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Alternaria Blight, Anthracnose, Gray Mold, Lime-Bordeaux Mixture, Panax ginseng, Phytotoxicity
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