Pheromone study on acarid mites xiii. identification of neryl formate as an alarm pheromone from the bulb mite rhizoglyphus robini acarina acaridae

Kuwahara, Y.; Shibata, C.; Akimoto, K.; Kuwahara, M.; Suzuki, T.

Applied Entomology and Zoology 23(1): 76-80


ISSN/ISBN: 0003-6862
Accession: 006102809

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The alarm pheromone was isolated from a hexane rinse of the bulb mite, Rhizoglyphus robini. The main component was identified as neryl formate (3,7-dimethyl-(Z)-2,6-octadienyl formate) and two minor components as citral (mixture of (Z)- and (E)-3,7-dimethyl-octa-2,6-dienal). The alarm pheromone activity of neryl formate was demonstrated against the bulb mite at 1 ppm hexane solution, which was ten times more active than demonstrated against the cheese mite Tyrophagus putrescentiae. The activity of citral was weak and demonstrated only at 1,000 ppm solution.