Sexual biology and mating disruption of orange tortrix, <i>Argyrotaenia citrana<i> (Lepidoptera: Tortricidae)
Abstract
Studies were conducted to characterize the sexual biology of Argyrotaenia citrana (Fernald) and to evaluate the potential of sex pheromones to disrupt moth communication. Both males and females are sexually active during their first scotophase. Virgin females start calling 3 hrs into scotophase and continue until sunrise. Calling frequency by virgins is lower during the first than in subsequent nights. Females generally mate once during a scotophase. Calling is reduced after mating for one scotophase and then increases though mated females continue to call less frequently than virgins. Peak calling by mated females is delayed several hours compared with virgins. Females may remate after 1-3 days. Males can mate more than once per scotophase. Oviposition is concentrated during early scotophase. Females laid an average of five egg masses. Communication and mating disruption were evaluated in replicated 0.1 ha plots and 100 m2 field cages treated with field-aged polyethylene tube dispensers releasing 0.7-1.2 mg/d of either (Z)-11-tetradecenyl acetate alone or in a 15:1 blend with (Z)-11-tetradecenal. Mating of tethered females in field cages and catches of lure and female-baited traps in small field plots were nearly completely disrupted with the two component blend. Dispensers emitting only the acetate pheromone were less effective in disrupting moth communication in similar tests.
Key words: Argyrotaenia citrana; orange tortrix; leafrollers; Rubus; mating disruption; sexual behavior
Downloads
Issue
Section
License
Authors who publish with the Journal of the Entomological Society of British Columbia agree to the following terms:
-Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
-Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
-Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
