9,11-Dodecadienyl alcohols, acetates, or aldehydes as synthetic chemical sex attractants for four Lepidoptera:Cosmopterix gemmiferella (Clemens),Dichrorampha simulana (Clemens),Tortricidia testacea (Packard), and anAncylis sp.

Four lepidoptera were lured to field traps containing various combinations of 9,11-dodecadienes with alcohol, acetate, or aldehyde functional groups. All species required two chemical components for best attraction.Cosmopterix gemmiferella was most responsive to a combination of (9Z)-9,11-dodecadienyl acetate and (9E)-9,11-dodecadienyl acetate in 2∶1 ratio;Dichrorampha simulana to (9E)-9,11-dodecadienyl acetate and (9E)-9,11-dodecadien-1-ol in 10∶1 ratio;Tortricidia testacea to (9Z)-9,11-dodecadienal and (9E)-9,11-dodecadienal in 10∶1 ratio; andAncylis sp. to (9Z)-9,11-dodecadienyl acetate and (9Z)-9,11-dodecadien-1-ol in 10∶1 ratio.