Attraction of Male European Tarnished Plant Bug, <Emphasis Type="Italic">Lygus rugulipennis</Emphasis> to Components of the Female Sex Pheromone in the Field |
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Authors: | Email author" target="_blank">P?J?InnocenziEmail author D?Hall J?V?Cross H?Hesketh |
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Affiliation: | (1) East Malling Research, East Malling, West Malling, Kent, ME19 6BJ, UK;(2) Natural Resources Institute, University of Greenwich, Chatham Maritime, Kent, ME4 4TB, UK;(3) Present address: NERC Centre for Ecology and Hydrology, Oxford, OX1 3SR, UK |
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Abstract: | Previous work showed that females of the European tarnished plant bug, Lygus rugulipennis Poppius (Heteroptera: Miridae), produced three chemicals, hexyl butyrate, (E)-2-hexenyl butyrate, and (E)-4-oxo-2-hexenal, and that these were suspected to be components of the female sex pheromone. In field experiments, traps baited with blends of these chemicals dispensed from polyethylene vials and sachets failed to catch significant numbers of males. Here, we report more recent field experiments in which the chemicals were released from glass microcapillary tubes. A blend of hexyl butyrate and (E)-4-oxo-2-hexenal was significantly attractive to male L. rugulipennis. In addition, whereas the mixture of all three components attracted fewer L. rugulipennis males, this tertiary blend captured significantly greater numbers of males of the congeneric species Lygus pratensis than the binary mixture. The possible reasons for the success of the microcapillaries compared with other dispensers are discussed. |
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Keywords: | Lygus rugulipennis Lygus pratensis Heteroptera Miridae tarnished plant bug sex pheromone hexyl butyrate (E)-2-hexenyl butyrate (E)-4-oxo-2-hexenal |
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