Translator Disclaimer
1 April 2008 Repellency of Callicarpenal and Intermedeol Against Workers of Imported Fire Ants (Hymenoptera: Formicidae)
Author Affiliations +
Abstract

Callicarpenal and intermedeol are two insect-repellent terpenoids isolated from leaves of American beautyberry (Callicarpa americana L.; Verbenaceae) and Japanese beautyberry (Callicarpa japonica Thunb.). The repellency of these two terpenoids against workers of red imported fire ants, Solenopsis invicta Buren, black imported fire ants, Solenopsis richteri Forel, and a hybrid of these two species was evaluated using digging bioassays. In a multiple choice digging bioassay using two colonies from each species and their hybrid, callicarpenal showed significant repellency at concentration as low as 50 ppm against both red imported fire ant colonies and 6.25 ppm against all black imported fire ant and hybrid colonies. Intermedeol showed significant repellency at concentration as low as 1.50 ppm against both red imported fire ant colonies and 6.25 ppm against all black imported fire ant and hybrid colonies. In total, 15 colonies, five colonies from each species and the hybrid, were tested on callicarpenal and intermedeol at 50 ppm in a two-choice digging bioassay. Both callicarpenal and intermedeol showed repellency against all colonies, and intermedeol showed significantly greater repellency than callicarpenal against both species and their hybrid.

J. Chen, C. L. Cantrell, S. O. Duke, and M. L. Allen "Repellency of Callicarpenal and Intermedeol Against Workers of Imported Fire Ants (Hymenoptera: Formicidae)," Journal of Economic Entomology 101(2), 265-271, (1 April 2008). https://doi.org/10.1603/0022-0493(2008)101[265:ROCAIA]2.0.CO;2
Received: 8 June 2007; Accepted: 30 September 2007; Published: 1 April 2008
JOURNAL ARTICLE
7 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top