Journal of Chemical Ecology

, Volume 20, Issue 7, pp 1697–1704 | Cite as

Kairomone from dandelion,Taraxacum officinale, attractant for scarab beetleAnomala octiescostata

  • Walter Soares Leal
  • Mikio Ono
  • Makoto Hasegawa
  • Masaaki Sawada


The attraction of the scarab beetleAnomala octiescostata to dandelion,Taraxacum officinale, was demonstrated to be chemically mediated by a mixture ofcis-3-hexenyl acetate, benzaldehyde, phenylacetaldehyde, benzyl alcohol, phenethyl alcohol, phenylacetonitrile, and benzyl benzoate, in the ratio 4:8:14:3:5:19:11. Combination of the synthetic kairomone and sex pheromone (buibuilactone + japonilure, 8:2), significantly increased the total catches ofA. octiescostata. Catches of male (but not female) beetles were significantly higher with the kairomone-pheromone blend than with kairomone alone. The synergistic effect of the kairomone from dandelion on the attractiveness did not significantly differ from that of a food-type lure, anethol, geraniol, and phenethyl propionate (9:0.5:0.5). The latter combined with the synthetic sex pheromone resulted in better attraction of female (but not male)A. octiescostata than the sex pheromone alone.

Key Words

cis-3-Hexenyl acetate benzaldehyde phenylacetaldehyde benzyl alcohol phenethyl alcohol phenylacetonitrile benzyl benzoate anethol geraniol phenethyl propionate kairomone sex pheromone dandelion Taraxacum officionale Coleoptera Scarabidae Anomala oritescostata scarab beetle 


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Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • Walter Soares Leal
    • 1
  • Mikio Ono
    • 2
  • Makoto Hasegawa
    • 3
  • Masaaki Sawada
    • 3
  1. 1.Department of Insect Physiology and BehaviorNational Institute of Sericultural and Entomological Science (NISES)Tsukuba-shiJapan
  2. 2.Fuji Flavor Co. Ltd.TokyoJapan
  3. 3.Chiba Prefectural Agricultural Experiment StationChibaJapan

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