Abstract
Collections of male tobacco horn worms, Manduca sexta (L.), in blacklight (BL) traps can be increased 10 or more times by baiting the traps with virgin female moths (Hoffman et al. 1966, Cantelo and Smith 1971). However. the rearing of these females is expensive and time consuming, and a synthetic female pheromone is not available. Therefore, we hoped to find a substitute material that could be used to increase collections. Isoamyl salicylate was chosen for evaluation because when it was used to bait relatively inefficient screen traps in Tennessee, it caught as many as 925 tobacco hornworms in a season. Also, 16 other species of sphingids were caught, but only Byles lineata (F.) and Xylophanes tersa (L.) were caught “in numbers” (Morgan and Lyon 1928). Moreover, at Oxford, N. C., collections in 12 similar-type traps (Stahl 1954) baited with isoamyl salicylate plus simulated jimson weed flowers averaged 112 M. sexta and 155 tomato hornworms, M. quinquemaculata (Haworth), each year from 1942 through 1953 with peak yearly collections of 414 M. sexta and 218 M. quinquemaculata . (However, in 1949, unbaited BL traps collected 15 × as many hornworm moths (both species) and in 1952–53 7–9× as many as the baited screen traps.)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
