Argentine ants have become a major pest in both agricultural and urban areas across the world. The use of toxic baits has been suggested as a possible method of controlling Argentine ant numbers in these areas. One gel and five granular baits containing hydramethylnon, pyriproxyfen or imidacloprid were tested for toxicity and attractiveness during foraging experiments in the laboratory. Gel baits containing imidacloprid were highly attractive to Argentine ants, but do not effectively reduce colony sizes. Granular baits covered in hydramethylnon were the most effective at reducing colony sizes and were relatively attractive to ants. Formulating sucrose gel baits containing hydramethylnon as active ingredient would capitalise on attractiveness and toxicity.

Investigation of the efficacy of commercial toxicants to Argentine ants.