Abstract
The attractiveness of volatile compounds from the floral scent of Rosa, one of the most preferred plants for adult Hoplia communis, was evaluated under field conditions. The beetles were attracted to most compounds tested, but 2-phenylethanol exhibited the highest capture rate. Catches increased with increasing emissions of between 9.1 and 287.2 mg/day. Catches in white traps were significantly larger (17.4-fold) than those in green traps when both were baited with anethole, an already known attractant; however, the trap color was not significant when a more attractive lure, 2-phenylethanol, was used. The use of a single funnel trap baited with 2 g of 2-phenylethanol at a heavily infested nursery exhibited promising results for mass trapping. Approximately 90,000 beetles of both sexes, which nearly corresponds to the estimated maximum population per 1000 m2, were captured within six days.
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Imai, T., Maekawa, M., Tsuchiya, S. et al. Field Attraction of Hoplia communis to 2-Phenylethanol, A Major Volatile Component from Host Flowers, Rosa spp.. J Chem Ecol 24, 1491–1497 (1998). https://doi.org/10.1023/A:1020907732706
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DOI: https://doi.org/10.1023/A:1020907732706