Research in Plant Disease 2006;12(1):51-54.
Published online April 30, 2006.
마늘오일을 이용한 오이와 토마토 흰가루병 방제
서상태, 이중섭, 박종한, 한경숙, 장한익
Control of Powdery Mildew by Garlic Oil in Cucumber and Tomato
Sang Tae Seo, Jung Sup Lee, Jong Han Park, Kyoung Suk Han, Han Ik Jang
The effectiveness of four plant oils (garlic, ginger, cinnamon and lemongrass) against a range of plant pathogenic organisms was tested in vitro. Of the four oils, two oils (garlic and cinnamon) showed relatively good antimicrobial activities. Activity of garlic oil was shown against the plant pathogenic bacteria Agrobacterium tumefaciens, Erwinia carotovora, Ralstonia solanacearum, Xanthomonas campestris, and the fungi Phytophthora infestans, Fusarium oxysporum, Collectotricum sp., whereas Acidovorax avenae and Pythium sp. showed the resistance towards garlic oil. Results from the planta bioassays under greenhouse conditions indicated that garlic oil significantly reduced the cucumber powdery mildew (Sphaerotheca fusca) and tomato powdery mildew (Erysiphe cichoracearum) showing control value 70.0-74.6% and 71.2%, respectively.
Key Words: Antimicrobial activity, Garlic oil, Powdery mildew

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