Research in Plant Disease 2007;13(3):177-182.
Published online December 30, 2007.
β-Tubulin 단백질의 중합을 억제하는 살균제에 대한 인삼 잿빛곰팡이병균의 감수성 변화
김주형, 민지영, 백영순, 배영석, 김흥태
Variation of the Sensitivity of Botrytis cinerea causing Ginseng Grey Mold to Fungicides Inhibiting β-Tubulin Assembly
Joo Hyung Kim, Ji Young Min, Young Soon Baek, Yeoung Seuk Bae, Heung Tae Kim
In this experiment, 236 isolates of Botrytis cinerea isolated from the lesions of ginseng grey mold in 2005 and 2006 were examined for their sensitivity to fungicide inhibiting β-tubulin assembly. The baselines of fungicide resistance were determined as 10.0 and 0.2 μg/ml of EC50 values for carbendazim and the mixture of carbendazim and diethofencarb, respectively. The ratios of isolates resistant to carbendazim in 2005 and 2006 was investigated to be 87.6 and 96.6%, respectively. In the case of the mixture of carbendazim and diethofencarb, the ratio of the resistant isolates was 23.6% for 2005 and 24.5% for 2006. The ratio of the resistant isolates to the mixed fungicide was fluctuated according to regions where isolates of B. cinerea were obtained. In Yeoncheon of Gyeonggi Province, 4.3% of the isolates used in the experiment was resistant in 2005 and no resistant isolate was obtained in 2006. Among 5 regions, the ratio of resistant isolates was the highest as 70.0% in Yecheon of Gyeongbuk Province.
Key Words: Carbendazim, Diethofencarb, Fungicide resistance, Gingseng grey mold

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