Field testing of synthetic attractants for male Grapholita libertina (Lepidoptera: Tortricidae)

• Published in: The Canadian Entomologist
• Main Authors: Hillier, N.K., Dixon, P.L., Seabrook, W.D., Larson, D.J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 2002
• Subjects: Insect Science; Molecular Biology; Physiology; Ecology, Evolution, Behavior and Systematics; Structural Biology; Newfoundland
• Online Access: http://dx.doi.org/10.4039/ent134657-5; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00005630

Abstract In an effort to develop an efficient monitoring method for the lingonberry fruitworm, Grapholita libertina Heinrich, an economically important pest of lingonberries, Vaccinium vitis-idaea L. var. minus Lodd. (Ericaceae), in Newfoundland, various known sex attractants for other species of the genus Grapholita Treitschke were evaluated for their ability to attract G . libertina moths in field trials in eastern Newfoundland. The chemicals tested were ( E , E )-8,10-dodecadien-1-ol acetate ( EE 8,10-12:Ac), ( E )-8-dodecen-1-ol acetate ( E 8-12:Ac), ( Z )-8-dodecen-1-ol acetate ( Z 8-12:Ac), and ( Z )-8-dodecen-1-ol ( Z 8-12:OH). Field trials in 1996 showed highest attraction to E 8-12:Ac, with Z 8-12:Ac and Z 8-12:OH also being attractive. Trials in 1997 demonstrated that a blend of E 8-12:Ac, Z 8-12:Ac, and Z 8-12:OH at a ratio of 85:10:5, respectively, was attractive to G . libertina males. All chemicals captured significantly more moths than did controls and all moths examined were males indicating these chemicals may be constituents of the naturally occurring female sex pheromone.