If one gets electrocuted, its death releases a chemical cue to attack a threat to the colony, said Roger Gold, an entomology professor at Texas A&M. "The other ants rush in. Before long, you have a ball of ants," he said.
"I did a test site with a product early on and applied the product to a half-acre ... In 30 days I had two inches of dead ants covering the entire half-acre," Rasberry said. "It looked like the top of the dead ants was just total movement from all the live ants on top of the dead ants."