Toxicity and Repellency of Borate-Sucrose Water Baits to Argentine Ants (Hymenoptera: Formicidae)

John H. Klotz; Les Greenberg; Christopher Amrhein; Michael K. Rust

doi:10.1603/0022-0493-93.4.1256

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John H. Klotz,¹ Les Greenberg,¹ Christopher Amrhein,² Michael K. Rust¹

¹Department of Entomology, University of California, Riverside, CA 92521
²Department of Environmental Sciences, University of California, Riverside, CA 92521 and Department of Entomology, University of California, Riverside, CA 92521

Abstract

The oral toxicity of boron compounds to the Argentine ant, Linepithema humile (Mayr), was evaluated in laboratory tests. The ants were provided 25% sucrose water containing 0.5 and 1% boric acid, disodium octaborate tetrahydrate, and borax. Lethal times of these solutions were a function of the concentration of boron. In field tests, the ants showed no discrimination between disodium octaborate tetrahydrate and boric acid. There was a significant reduction in consumption of sucrose water with >1% boric acid.

Citation Download Citation

John H. Klotz, Les Greenberg, Christopher Amrhein, and Michael K. Rust "Toxicity and Repellency of Borate-Sucrose Water Baits to Argentine Ants (Hymenoptera: Formicidae)," Journal of Economic Entomology 93(4), 1256-1258, (1 August 2000). https://doi.org/10.1603/0022-0493-93.4.1256

Received: 11 January 2000; Accepted: 1 April 2000; Published: 1 August 2000