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http://dx.doi.org/10.7585/kjps.2013.17.4.435

Control effect of the Mixture of Bacillus amyloliquefaciens M27 and Plant Extract against Cucumber Powdery Mildew  

Lee, Sang Yeob (Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), Rural Development Administration (RDA))
Weon, Hang Yeon (Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), Rural Development Administration (RDA))
Kim, Jeong Jun (Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), Rural Development Administration (RDA))
Han, Ji Hee (Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), Rural Development Administration (RDA))
Kim, Wan Gyu (Agricultural Microbiology Division, National Academy of Agricultural Science (NAAS), Rural Development Administration (RDA))
Publication Information
The Korean Journal of Pesticide Science / v.17, no.4, 2013 , pp. 435-439 More about this Journal
Abstract
Bacillus amyloliquefaciens M27 was selected as a control agent for the biological control of cucumber powdery mildew. The new mixture of B.amyloliquefaciens M27 and plant (Eucalytus) extract was developed to improve the control activity of B.amyloliquefaciens M27 against cucumber powdery mildew. The mixed formulation showed the high preventive and curative control effect against cucumber powdery mildew when it was diluted at 500 times and foliar-sprayed. Its control effect was higher in preventive spraying than curative spraying. When 500-fold diluted solution of the formulation was sprayed preventively four times at five-day intervals, three times at seven-day intervals and twice at ten-day intervals, the diseased leaf area was shown to be 4.4%, 8.0%, 27.9%, respectively; Whereas the diseased leaf area in the control plot was 45.4%. When the 500-fold diluted formulation was sprayed curatively four times at five-day intervals, three times at seven-day intervals and twice at ten-day intervals after occurred cucumber powdery mildew, the diseases leaf area was 11.5%, 25.2%, 51.8%, respectively; whereas in the control plot, the diseases leaf area was 64.3%. When the 500-fold diluted formulation was treated four times at five-day intervals in the plastic house, its control effect was higher than that treated three times at seven-day intervals and twice at ten-day intervals. As the results, the mixed formulation of B.amyloliquefaciens M27 and plant extract could be a promising candidate of bio-fungicides for the environment-friendly control of powdery mildew of cucumber.
Keywords
Bacillus amyloliquefaciens M27; Cucumber Powdery mildew; Plant Extract;
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Times Cited By KSCI : 3  (Citation Analysis)
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