Field response of the pine sawfly Neodiprion sertifer to the pheromone (2S, 3S, 7S)‐diprionyl acetate and its stereoisomers

Anderbrant, OlleLund University,Lunds universitet,Funktionell zoologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Functional zoology,Department of Biology,Faculty of Science (författare)

All eight optical isomers of 3,7‐dimethyl‐2‐pentadecanyl acetate (diprionyl acetate), of high optical purity (>97.4%), were tested for a behavioural activity on male pine sawflies, Neodiprion sertifer (Geoffr.) (Hymenoptera: Diprionidae), in northern Europe. Males were strongly attracted to (2S, 3S, 7S)‐diprionyl acetate. Addition of more than 0.1% of the (2S, 3R, 7R)‐isomer reduced the catch and above 2% the attraction was completely inhibited. Contrary to what has been reported for North American and Japanese populations, so significant synergistic effect of small amounts of the (2S, 3R, 7R)‐isomer could be demonstrated. The effects of addition of the other six optical isomers alone or in combinations, were also studied, but none was found to be a synergist. The (2S, 3R, 7S)‐isomer had a weak inhibitory effect, and completely inhibited the attraction to the (2S, 3S, 7S)‐isomer when applied in about equal amounts as the attractant. In some cases a reduction in catch was noted when other isomers were tested, but this could be attributed to the very small amounts of the inhibitory (2S, 3R, 7R)‐isomer present in these isomers. 1992 The Netherlands Entomological Society

Löfqvist, JanLund University,Lunds universitet(Swepub:lu)ju1253lo (författare)
Högberg, H. ‐EMid Sweden University (författare)
Hedenström, E.Mid Sweden University (författare)
Wassgren, A. ‐BUniversity of Gothenburg (författare)
Bergström, G.University of Gothenburg (författare)
Bengtsson, MarieLund University (författare)
Magnusson, G.Lund University,Lunds universitet,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)extLU-74 (författare)
Funktionell zoologiBiologiska institutionen (creator_code:org_t)

Av författaren/redakt...: Anderbrant, Olle; Löfqvist, Jan; Högberg, H. ‐E; Hedenström, E.; Wassgren, A. ‐B; Bergström, G.; visa fler...; Bengtsson, Marie; Magnusson, G.; visa färre...

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