title: Disruption of Darna pallivitta (Lepidoptera: Limacodidae) by Conventional and Mobile Pheromone Deployment.
abstract: Identification of the Darna pallivitta (Moore) pheromone component n-butyl (E)-7,9-decadienoate (E7,9-10:COOn-Bu) has made it possible to investigate communication disruption to control this lepidopteran pest. Conventional communication disruption trials showed marked decreases in the mean number of male moths captured in E7,9-10:COOnBu-treated fields compared with control fields. For traps baited with E7,9-10:COOnBu, percent disruptions were 94.4% and 92.1% for septa (1 g pheromone/ha, 1-wk trial duration) and spirals (6 g pheromone/ha, 8-wk trial duration) respectively. For traps baited with virgin female moths, percent disruption was 73.3% using septa disruptors (1 g pheromone/ha, 1-wk trial duration). Mobile communication disruption using Bactrocera cucurbitae (Coquillett) as carriers for E7,9-10:COOn-Bu was evaluated in the following three areas: fly survivorship, attraction of male moths to treated flies, and moth disruption in a small-scale field trial. Topical application of E7,9-10:COOnBu showed no significant decrease in survivorship at 50 and 80 µg/fly. However, decreased survivorship was observed at 100 µg/fly and linear regression showed E7,9-10:COOnBu dose was significantly correlated with B. cucurbitae survivorship. Traps containing honey-pheromone-fed flies attracted and caught D. pallivitta over a 1-wk period, demonstrating the attractiveness of the carrier. Releasing E7,9-10:COOnBu-fed B. cucurbitae (∼2 g pheromone/ha, 1-wk trial duration) resulted in significantly reduced trap catches in treatment fields compared with control fields on the first 2 d of the field trial. Percent disruptions were 84.7% (day 1) and 56.0% (day 2). These results suggest that both conventional communication disruption and mobile communication disruption have potential to control D. pallivitta.
authors.affiliation: Department of Chemistry, Eastern Mennonite University, 1200 Park Rd., Harrisonburg, VA 22802 matthew.siderhurst@emu.edu.
authors.forename: Matthew S
authors.initials: MS
authors.lastname: Siderhurst
authors.affiliation: Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, USDA-ARS, P.O. Box 4459, Hilo, HI 96720.
authors.forename: Eric B
authors.initials: EB
authors.lastname: Jang
authors.affiliation: Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, USDA-ARS, P.O. Box 4459, Hilo, HI 96720.
authors.forename: Lori A F N
authors.initials: LA
authors.lastname: Carvalho
authors.affiliation: Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, USDA-ARS, P.O. Box 4459, Hilo, HI 96720.
authors.forename: Janice T
authors.initials: JT
authors.lastname: Nagata
authors.affiliation: Department of Chemistry, Eastern Mennonite University, 1200 Park Rd., Harrisonburg, VA 22802.
authors.forename: Nathan T
authors.initials: NT
authors.lastname: Derstine
mesh_terms: D000818:Animals; D005231:Fatty Acids, Unsaturated / Q000494:pharmacology*; D005260:Female; D008297:Male; D009036:Moths / Q000187:drug effects* / Q000502:physiology; D010572:Pest Control, Biological; D012724:Sex Attractants / Q000494:pharmacology*; D012726:Sexual Behavior, Animal / Q000187:drug effects; D033621:Tephritidae / Q000502:physiology*
chemical_list: D005231:Fatty Acids, Unsaturated; D012724:Sex Attractants; C000608125:n-butyl 7,9-decadienoate
keywords: 9-decadienoate; communication disruption; invasive species; melon fly; n-butyl (E)-7; sex pheromone