抄録
A series of field trapping of males of the peach fruit moths was conducted with synthetic pheromonal compounds, (Z)-7-eicosen-11-one (compound A) and (Z)-7-nonadecen-11-one (compound B), in apple and peach orchards in Aomori and Fukushima Prefectures. Polyethylene capsule and polyethylene cap were better than two different rubber septa as dispensers of synthetic pheromonal compounds A and B (20: 1 ratio) at the level of 0.1 to 0.3mg per dispenser, though no difference was observed at the level of 1.0 to 3.0mg per dispenser. Trap catch of male moths increased as the amount increases from 0.1 to 3.0mg per dispenser. Synergistic effect of compound B on trap catch was not observed, and compound A alone was enough as a bait for male peach fruit moths. Additions of (E)-isomers of compounds A and B, and (Z)-and (E)-7-alken-11-ones of carbon number 17, 18, 21, and 23 at the level upto 10% of 20: 1 mixture of compounds A and B showed no effect on the attractiveness.
