title: Sugar beet crown borer,Hulstia undulatella (Clemens) 1: Identification and field tests of female sex pheromone gland components.
abstract: Electroantennogram profiles of saturated and monounsaturated 12-, 14-, and 16-carbon acetates, and 12- and 14-carbon alcohols implicated (Z)-9-tetradecen-1-ol acetate (Z9-14: Ac) as a component of the female sex pheromone ofHulstia undulatella (Clemens). Gas chromatography-mass spectrometric analysis of extract of the female sex pheromone glands showed the presence of Z9-14:Ac (8.5 ng/female), (Z)-9-tetradecen-1-ol (Z9-14:OH), and (Z)-11-hexadecen-1-ol acetate (Z11-16:Ac) in a ratio of 100∶4∶21, respectively. In tests in sugar beet fields, Z9-14:Ac alone produced some trap catch. Addition of Z9-14: OH did not increase catch while addition of Z11-16:Ac eliminated catch, but addition of both Z9-14:OH and Z11-16: Ac increased catch sevenfold. A combination of Z9-14: OH and Z11-16: Ac without Z9-14: Ac did not produce trap catch. A lure of 200 μg Z9-14:Ac+16 μg Z9-14:OH+42 μg Z11-16:Ac is suggested for use in monitoring traps.
authors.affiliation: Agricultural Research Service, USDA Yakima, 98902, Washington.
authors.forename: H G
authors.initials: HG
authors.lastname: Davis
authors.forename: L M
authors.initials: LM
authors.lastname: McDonough
authors.forename: P S
authors.initials: PS
authors.lastname: Chapman
authors.forename: C L
authors.initials: CL
authors.lastname: Smithhisler
authors.forename: D D
authors.initials: DD
authors.lastname: Bowers
authors.forename: S
authors.initials: S
authors.lastname: Voerman