Research in Plant Disease 2008;14(2):102-106.
Published online August 30, 2008.
미생물 제제와 살균제에 의한 인삼 점무늬병의 방제
이상국, 한진수, 김현길, 윤대붕, 최재을
 
Control of Alternaria Leaf Blight of Ginseng by Microbial Agent and Fungicides
Xiang Guo Li, Jin Soo Han, Xuan Ji Jin, Da Peng Yin, Jae Eul Choi
Abstract
The single application of Bacillus subtilis QST713 (BS QST713) mixed application with fungicides and alternate application were treated to examine the control of alternaria leaf blight of Panax ginseng. Control value of alternaria leaf blight by single application of BS QST713 at 10 days interval was 83.3%, and those of single application at 10 days interval was 80.4~83.7% by azoxystrobin, chlorothalonil · copper sulfate basic, copper sulfate basic, kresoxim-methyl, difenoconazole, mancozeb. When mixture of BS QST713 and fungicides were applied at 14 days interval, the control value of alternaria leaf blight were 83.6% by BS QST713 and mancozeb, and 82.6% by BS QST713 and azoxystrobin. However, mixture of BS QST713 with difenoconazole, kresoxim-methyl, copper sulfate basic and chlorothalonil · copper sulfate basic exhibited the disease control values from 61.1% to 76.4%, which showed slightly lower control efficacy. In Daejeon, the alternate application of BS QST713 followed by copper sulfate basic with 14 days interval was 85.9% in control value, which showed the best control efficacy. The alternate application with other tested fungicides slightly decreased to 55.5~78.2% in control value. However, the alternate application of BS QST713 followed by fungicides showed very high control efficacy, which were approximately 90% in Muju, Jeonbuk Province. Consequently, the single, mixed or alternate application of BS QST713 and fungicides could be recommended as a control method to reduce the amount of fungicides.
Key Words: Alternaria Leaf blight, Alternate application, Bacillus subtilis QST713, Control value, Panax ginseng


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