Antifeedants against Acusta despesta [Snails] from the Japanese cedar, Cryptomeria japonica, 2

Chen, X.H. . Faculty of Agriculture; Kim, C.S.; Kashiwagi, T.; Tebayashi, S.; Horiike, M.

Antifeedants against Acusta despesta [Snails] from the Japanese cedar, Cryptomeria japonica, 2

2001

Chen, X.H. (Kochi Univ., Nankoku (Japan). Faculty of Agriculture) | Kim, C.S. | Kashiwagi, T. | Tebayashi, S. | Horiike, M.

The hexane-soluble fr. was found to be as intense in antifeeding activity as the crudc methnol extract of Cryptomeria japonica against Acusta despesta. This hexane soluble-fraction was used to isolate and identify two sesquiterpenols, (-)-cubebol and (+)-2, 7(14), 10-bisabolatrien-1-ol-4-one, as the active compounds. Both compounds strongly inhibited the feeding behavior of A. despesta at 120 micro g /square cm and 80 micro g /square cm concentrations, respectively.

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