Attraction of male turnip mothsAgrotis segetum (Lepidoptera: Noctuidae) to sex pheromone components and their mixtures at 11 sites in Europe,Asia, and Africa |
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| Authors: | Miklòs Tòth Christer Löfstedt Barry W. Blair Tomàs Cabello Ali I. Farag Bill S. Hansson Boris G. Kovalev Stefano Maini Evgeni A. Nesterov Istvàn Pajor Aleksandr P. Sazonov Igor V. Shamshev Mitko Subchev Gàbor Szöcs |
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| Affiliation: | (1) Plant Protection Institute of the Hungarian Academy of Sciences, Pf 102, H-1525 Budapest, Hungary;(2) Tobacco Research Board, P.O. Box 1909, Harare, Zimbabwe;(3) C.I.D.A. Department of Plant Protection, P. O. Box 2027, E-18080 Granada, Spain;(4) Plant Protection Department Faculty of Agriculture, Menoufia University, Shibin El Kom, Egypt;(5) Department of Animal Ecology, Lund University, Helgonavägen 5, S-22362 Lund, Sweden;(6) All-Union Research Institute for Biological Control Methods, pr. Mira 58, 277060 Kishinev, USSR;(7) Institute of Entomology, University of Bologna, Via Filippo Re 6, I-40126 Bologna, Italy;(8) Department of Zoology and Entomology, University of Natal, P.O. Box 375, 3200 Pietermaritzburg, Republic of South Africa;(9) All-Union Research Institute for Plant Protection s. Podbel'skogo 3, St. Petersburg, 188620 Pushkin-6, USSR;(10) Institute of Zoology, Bulgarian Academy of Science, blvd. Russia 1, 1000 Sofia, Bulgaria |
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| Abstract: | Selected combinations of (Z)-5-decenyl, (Z)-7-dodecenyl, and (Z)-9-tetradecenyl acetates, the pheromone components of the turnip mothAgrotisSegetum were tested for field attractancy at six, two, and three sites in Europe, Asia, and Africa, respectively. At all of the sites in Eurasia and in northern Africa the ternary mixture of the acetates captured most males, while at the sites south of the Sahara in Africa, (Z)-5-decenyl acetate alone was responsible for attraction. Differences in male attraction among the populations studied confirm the existence of significant population variation in the pheromone ofA. segetum. Interpretation of the present results together with earlier studies suggests that this variation is more or less continuous in Eurasia and north Africa, while a clearly distinct pheromone type is present in the areas south of the Sahara desert. |
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| Keywords: | Sex pheromone Agrotis segetum Lepidoptera Noctuidae field trapping (Z)-5-decenyl acetate (Z)-7-dodecenyl acetate (Z)-9-tetradecenyl acetate geographical population variation |
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