Ecology

Sex pheromone of the Brazilian apple leafroller, Bonagota cranaodes (Lepidoptera: Tortricidae): Effect of geometricisomers on male attraction to (E,Z)-3,5-dodecadienyl acetate

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M.D.A.Coracini 1 , M.Bengtsson 1 , J.L–fqvist 1 , A.E. Eiras 2 , E.F. Vilela 3 , A.Reckziegel 4 & P.Witzgall 1

1 Dept. of Plant Protection Sciences, Swedish Univ. ofAgricultural Sciences, P. O. Box 44, S-230 53 Alnarp, Sweden; 2 UFMG, ICB, Dept.Parasitologia, Entomologia, Bloco L3, Campus da Pampulha,Belo Horizonte, MG, 31270-901, Brasil; 3 UFV, DBA, Av. P.H.Holfs s/n, Vicosa, MG,36571-000, Brasil; 4 Institut f.Organische Chemie & Biochemie der Universit”t Hamburg,Martin-Luther- King-Platz 6, D-20146 Hamburg 13, Germany

The behavioural response of male Brazilian apple leafroller, Bonagota cranaodes, to the main sexpheromone compound (E,Z)-3,5-dodecadienyl acetate (E3,Z5-12Ac) and to female extracts was studied in a wind tunnel. A field trapping test showed that contamination of the main compound with the non-pheromonal isomers E,E; Z,E and Z,Z does not account for the discrepancy in male attraction toE3,Z5-12Ac and female extracts.

Index terms: Bonagotacranaodes, geometric isomer, behavior, flight tunnel.

Copyright: The copyrights of this original work belong to the authors (see right-most box in title table). This abstract appeared in Session 4 – CHEMISTRY AND PHYSIOLOGICAL ECOLOGY Symposium and Poster Session, ABSTRACT BOOK II – XXI-International Congress of Entomology, Brazil, August 20-26, 2000.