Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Determination of the effective spray- interval of Bacillus thuringiensis against diamond-back moth (Plutella xylostella) on chinese cabbage

  • Han, E.J. (Organic Agriculture Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Park, J.H. (Organic Agriculture Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Hong, S.J. (Organic Agriculture Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Ahn, N.H. (Organic Agriculture Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Jee, H.J. (Organic Agriculture Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Y.K. (Organic Agriculture Division, National Academy of Agricultural Science, Rural Development Administration)
  • Published : 2011.11.30
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Abstract

In organic Chinese cabbage fields, Commercial Bacillus thuringiensis products are used widely against diamond back moth, Plutella xylostella. We conducted the study to determine the effective spray-interval of commercialized B. thuringiensis against diamond back moth on Chinese cabbages. Chinese cabbage leaves were collected 0, 1, 2, 3, 6, 10days after treatment in first trial and 0, 2, 4, 7, 9, 11days after treatment. We compared the insecticidal property of sprayed B. thuringiensis and the density of it on surface of Chinese cabbages using collected leaves. The insecticidal property maintained high until nine days after commercial B. thuringiensis products sprayed.

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