Susceptibility of immature stages of the obliquebanded leafroller, Choristoneura rosaceana (Lepidoptera: Tortricidae) to fenoxycarb
Abstract
In laboratory bioassays, eggs, larvae and pupae of the obliquebanded leafroller, Choristoneura rosaceana (Harris), were susceptible to the juvenile hormone analog, fenoxycarb. All eggs treated with 100 ppm failed to hatch; a dose dependent response was noticed at lower concentration (LC50= 1.59 ppm, LC95=29.88 ppm). High larval and pupal mortality occurred when fully-grown larvae were exposed to fenoxycarb (LC50=2.33 ppm, LC95=32.67 ppm). Freshly formed pupae were slightly less susceptible (LC50=30.50, LC95=93.00) than eggs or larvae. Abnormal development (both in times required for growth and adult formation) was noted in all treatments.
Key words: Choristoneura rosaceana; obliquebanded leafroller; Tortricidae; insect growth regulator; fenoxycarb
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).
