Abstract
Field trapping of the American palm weevil (APW),Rhynchophorus palmarum, showed that the combination of caged male APWs and palm stem was much more attractive to APWs of both sexes than palm stem alone. Caged female APWs did not enhance the attractiveness of the palm. Caged APWs without palm stem were not attractive. Virgin laboratory-bred males were highly attractive to APWs of both sexes in a two-choice pitfall olfactometer, whereas virgin laboratory-bred females were not. Adsorbenttrapped volatiles from virgin laboratory-bred males reproduced the effect of living males, giving evidence for a male-produced aggregation pheromone in this species. Wild-mated APWs of both sexes were as responsive to the aggregation pheromone as virgin laboratory-bred APWs. This is the first record of chemical communication in this species. These results have prompted investigations into the chemical identification of the aggregation pheromone.
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Rochat, D., González, A.V., Mariau, D. et al. Evidence for male-produced aggregation pheromone in American palm weevil,Rhynchophorus palmarum (L.) (Coleoptera: Curculionidae):. J Chem Ecol 17, 1221–1230 (1991). https://doi.org/10.1007/BF01402945
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DOI: https://doi.org/10.1007/BF01402945