Florida Entomologist (2015) 98, 451-455

From Pestinfo-Wiki
Jump to: navigation, search

Michelle P. Montgomery, Cas Vanderwoude and A. Jasmyn J. Lynch (2015)
Palatability of baits containing (S)-methoprene to Wasmannia auropunctata (Hymenoptera: Formicidae)
Florida Entomologist 98 (2), 451-455
Abstract: Wasmannia auropunctata Roger (Hymenoptera: Formicidae), little fire ant, is recognized as a serious pest ant species that affects agriculture, homes, gardens, and natural ecosystems in Hawaii, USA, and elsewhere. Anecdotal evidence suggests that insecticidal baits containing (S)-methoprene are not effective against this species. We examined whether W. auropunctata is repelled by bait formulations containing this compound and whether the addition of torula yeast (Candida utilis Lodder; Saccharomycetales: Saccharomycetaceae) increased palatability of these baits. Wasmannia auropunctata was found to be repelled by (S)-methoprene concentrations as low as 0.25% regardless of formulation. The addition of torula yeast (3% by weight) significantly increased worker recruitment to baits with and without (S)-methoprene. Our results indicate bait formulations using (S)-methoprene are likely to offer poor efficacy against Wasmannia auropunctata without the addition of a feeding stimulant such as torula yeast due to repellency of the active ingredient.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Michelle P. Montgomery

Research topic(s) for pests/diseases/weeds:
control - general

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Wasmannia auropunctata U.S.A. (Hawaii)