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논문 상세정보

Abstract

Changes of control efficacy of chemical to potato late blight caused by Phytophthora infestans in potato fields from 2001 to 2004 were examined. Control efficacy of metalaxyl was suddenly decreased from 100% in 2002 to 50% in 2004 and that of dimethomorph also was similar to those of metalaxyl. However, the control efficacy of ethaboxam no great change. Both A1 and A2 mating type isolates were isolated from 2001 to 2004 in several areas in Korea. The majority of the P. infestans isolates were A1 mating type. Total 939 isolates of P. infestans obtained from several areas in Korea from 2001 to 2004 were examined for changes of sensitivity to metalaxyl. Frequencies of metalaxyl resistance isolates were gradually increased from 17% in 2001 to 84.2% in 2004, but isolation frequencies of metalaxyl sensitive and intermediate resistant isolate were decreased. Cause of decreasing control efficacy of metalaxyl was thought by increase of resistance isolates in A1 mating type population according to increasing metalaxyl use. Most isolates were grown at 0.5 ${\mu}g/ml of dimethomorph and isolates grown at 1 ${\mu}g/ml of dimethomorph were approximately 10.2-22.9%. However, no isolate was able to grow at 5.0 ${\mu}g/ml. Based on these results, minimum inhibitory concentrations (MIC) of dimethomorph to P. infestans were determined to be 0.5-1.0 ${\mu}g/ml. Our results indicated that the reason decreasing control efficacy of dimethomorph was not caused by occurrence of resistant isolates. About 5% and 12.1% isolates among the total isolates collected in 2003 and 2004 were grown on V-8 juice rye agar containing 1.0 ${\mu}g/ml ethaboxam. The 2.1 and 25.4% isolates had MICs of 0.2-0.4 ${\mu}g/ml, and MIC values of 87.9% and 74.3% isolates were less than 0.2 ${\mu}g/ml concentrations of ethaboxam. Therefore, resistance development by P. infestans to ethaboxam is not likely to occur in the natural condition.

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이 논문을 인용한 문헌 (11)

  1. Ryu Kyoung-Yul ; Jee Hyeong-Jin ; Choi Do-Hoi ; Cheon Jeong-Uk ; Kim Jong-Tae ; Kim Byung-Sup 2005. "Disease Progress and Yield Loss of Potato Late Blight Caused by Pntytophthora Infestans in Organic Farming Fields" Research in plant disease = 식물병연구, 11(2): 122~127 
  2. Ryu, Kyoung-Yul ; Jee, Hyeong-Jin ; Shim, Chang-Ki ; Lee, Byung-Mo ; Park, Jong-Ho ; Choi, Du-Hoe ; Ryu, Gab-Hee ; Park, Young-Eun 2006. "Evaluation of Phytophthora Late Blight Resistance of Potato Variety in Korea" Research in plant disease = 식물병연구, 12(3): 235~239 
  3. 2006. "" Journal of microbiology and biotechnology, 16(3): 423~430 
  4. 2006. "" Journal of microbiology and biotechnology, 16(5): 724~730 
  5. 2006. "" The plant pathology journal, 22(3): 303~308 
  6. Kim, Sun-Bo ; Lee, Soo-Min ; Min, Gi-Young ; Kim, Heung-Tae 2007. "Response to metalaxyl of Phytophthora capsici isolates collected in 2005 and 2006" 농약과학회지 = The Korean journal of pesticide science, 11(4): 305~312 
  7. Yeon, Cho-Long ; Lee, Soo-Min ; Kim, Sun-Bo ; Min, Gi-Young ; Kim, Heung-Tae 2008. "The Change of Resistance of Phytophthora infestans to Metalaxyl and the Relationship with the Pathogenicity on Pepper Plants" 농약과학회지 = The Korean journal of pesticide science, 12(3): 270~276 
  8. Lee, Byung-Dae ; Park, Hoon 2009. "Control of Phytophthora Blight of Panax ginseng Caused by Phytophthora cactorum using Phosphonate under the Controlled Condition" Journal of ginseng research = 高麗人參學會誌, 33(4): 311~315 
  9. Park, Kyeong-Hun ; Ryu, Kyoung-Yul ; Yun, Jeong-Chul ; Jeong, Kyu-Sik ; Kim, Jeom-Soon ; Kwon, Min ; Kim, Byung-Sup ; Cha, Byeong-Jin 2010. "Changes of Mating Type Distribution and Fungicide-resistance of Phytophthora infestans Collected from Gangwon Province" Research in plant disease = 식물병연구, 16(3): 274~278 
  10. Kim, Jin-Ho ; Kim, Joo-Hyung ; Lee, Kyeong-Hee ; Rho, Chang-Woo ; Kim, Heung-Tae 2010. "Establishment of Baseline Sensitivity of Phytophthora capsici Causing Pepper Phytophthora Blight to Carboxylic Acid Amide Fungicides" 농약과학회지 = The Korean journal of pesticide science, 14(4): 456~462 
  11. Kim, Jeom-Soon ; Lee, Young-Gyu ; Kwon, Min ; Kim, Ju-Il ; Jee, Samnyu ; Park, Kyeong-Hun 2014. "Mating Types of Phytophthora infestans Isolates and Their Responses to Metalaxyl and Dimethomorph in Korea" Research in plant disease = 식물병연구, 20(1): 25~30 

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