Are fire ant baits toxic to humans and pets?

Imported Fire Ants October 01, 2015 Print Friendly and PDF

Fire ant bait materials have a variety of active ingredients with varying toxicity levels. Because such a small amount of active ingredient is in the bait, humans or animals would have to eat a huge amount before getting sick or dying.

The LD50 standard refers to the lethal dose needed to kill 50 percent of the test animal population. For example, to exceed the oral LD50 standard, a 50-pound dog would have to eat 9 pounds of Amdro (hydramethylnon) fire ant bait.


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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.