Abstract
Field experiments were carried out to ascertain whether synthetic floral odour compounds were attractive for two pest bug species. The European tarnished plant bug (Lygus rugulipennis Poppius) has been reported to damage various crops (e.g. strawberry, sugarbeet, alfalfa, cucumber), and the alfalfa plant bug (Adelphocoris lineolatus (Goeze)) is considered as a pest of alfalfa and Bt-cotton. In our field tests, traps baited with phenylacetaldehyde caught significantly more L. rugulipennis than unbaited traps. In addition, A. lineolatus was also attracted to phenylacetaldehyde-baited traps. When testing other, EAG active compounds, (E)-cinnamaldehyde attracted A. lineolatus as well. This compound was also attractive for L. rugulipennis, however, to a lesser extent than phenylacetaldehyde. When the two compounds were presented in combination, no synergistic or inhibitory effect was detected in either species. By attracting both sexes of both species, these new attractants may prove to be useful and provide the basis for further development of new lures for agricultural use.



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Acknowledgments
The authors are grateful to Dr. Dávid Rédei (Natural History Museum, Budapest) for the advice given in the identification of mirid species and to Mr. Ferenc Kádár for his kind suggestions concerning statistical analyses. Our thanks are also due to Dr. Michelle Fountain (East Malling Research, UK) for her kind suggestions regarding the manuscript. This research was partially supported by OTKA grant K 81494 of the Hungarian Academy of Sciences.
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Koczor, S., Vuts, J. & Tóth, M. Attraction of Lygus rugulipennis and Adelphocoris lineolatus to synthetic floral odour compounds in field experiments in Hungary. J Pest Sci 85, 239–245 (2012). https://doi.org/10.1007/s10340-012-0422-5
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DOI: https://doi.org/10.1007/s10340-012-0422-5


