Wind Tunnel Tests on the Disruption of Pheromonal Orientation of the Male Smaller Tea Tortrix Moth, Adoxophyes sp : Lepidoptera : Tortricidae : I. Disruptive Effect of Sex Pheromone Components

A wind tunnel was used to evaluate controlled-release dispensers containing (Z)-9-tetradecenyl acetate (Z-9-TDA), (Z)-11-tetradecenyl acetate (Z-11-TDA), (E)-11-tetradecenyl acetate (E-11-TDA), 10-methyldodecyl acetate (10-Me-DA), a 4-component mixuture (Z-9-TDA : Z-11-TDA : E-11-TDA : 10-Me-DA=70 : 30 : 5 : 20) and a 3-component mixture [Z-9-TDA : Z-11-TDA : (Z)-9-dodecenyl acetate (Z-9-DDA)=1 : 1 : 1] as disruptants for the smaller tea tortrix moth, Adoxophyes sp. Among the 6 candidate dispensers, Z-11-TDA, the 4-component mixture and the 3-component mixture effectively suppressed the male moth catch in a trap baited with 4-component pheromone dispenser in the wind tunnel. The mechanisms of orientation disruption were discussed based on the behavior of male moths in the tunnel.