According to a research conducted by USDA-ARS or the Agricultural Research Service of the Department of Agriculture of the United States, there is a more effective method of controlling pest ants such as red imported fire ant with the help of insecticide baits that are resistant to moisture. In the coming days, there will be a comparison study to be published inside the Journal of Economic Entomology which will feature the water resistant ant bait. There is a big advantage in using these new improved baits compared to the current ones in the market which eventually breaks down as soon as it comes in contact with water.
Since the introduction of the little fire ant and the red imported fire ant into the United States, these two species have spread and survived. The red imported fire ant is known to have invaded the south east part of the United States while the little fire ant is currently dominant on the Big Island which is also more commonly known as Hawaii. In both of these regions, moisture is common thus existing baits work in a very limited manner.
A new formulation of the ant bait was developed which is a promising one because it is water-resistant. An experiment was done by a team with the leadership of Robert K. Vander Meer PH. D. It was conducted at the Imported Fire Ant and Household Insects Research Unit of the USDA-ARS Center for Medical, Agricultural, and Veterinary Entomology.
During the experiment, the water-resistant bait and existing bait was used while in a wet condition. These baits contain active ingredients that make it impossible for the ant queen in the colony to deliver more eggs. The test lasted for 13 weeks and the result showed that for the standard bait, half of the colonies are no longer producing workers while the colonies with water-resistant baits have produced zero workers in all.
These pest ants are not to be taken lightly thus if you see a colony in your place, make sure to contact immediately your local Perth pest control company.