Raimondas MOZURAITIS-1,2, Anna-Karin BORG-KARLSON-1, Vincas BUDA-2
1- Royal Institute of Technology, Department of Chemistry, Organic
Chemistry, S-100 44 Stockholm, Sweden
2- Section of Chemical Ecology, Inatitute of Ecology, Akademijos 2,
Vilnius 2600, Lithuania
In field screening tests in Lithuania in 1993 and 1994, 21 saturated and monounsaturated straight chain C12 and C14 alcohols and their acetates as well as some binary mixtures were investigated in dosages of 1 and 0.2 mg/dispenser. New sex attractants were discovered for 7 moth species of the genus Phyllonorycter, family Gracillariidae: E101-2:0H alone or in 10:1 mixture with E10-12:0Ac for P. sorbi, E10-12:0Ac alone for P. cydoniella and in 10:1 mixture with E10-12:0H for P. oxyacanthae, Z10-12:0Ac for P. junoniella, and Z10-14:0Ac in a 1:10 mixture with E9-14:0Ac for P. sylvella, P. harrisella, and P. coryli.The inhibitors of the sex attractants were found for the following 4 leafminer species of this genus: Z7-, Z9- and Z10-12:0Ac for P. sorbi), Z10-, E10-12:0H and E10-14:0H for P. mespilella, E10-12:0H for P. cydoniella, Z10-12:0H and E10-14:0H for P. oxyacanthae.
Schemes of probable interactions by means of semiochemicais between the tentiform leafminer moths and other lepidopteran species are presented, based on the sex attractants and the inhibitors that we have found.