I told him the full story. All of it. Every failed attempt, every dollar spent.
He listened without interrupting. When I finished, he was quiet for a moment.
"You've been trying to catch them," he said.
"Yes."
"But catching doesn't stop more from coming."
"I know. The pest control guys said the same thing. That's why they want me on a maintenance plan."
"Right. Because the maintenance plan doesn't fix anything. It just manages what's already broken."
He looked at the yard again.
"On the farm, we had vole pressure every few years. Bad years, they'd wipe out whole sections of an orchard. Strip the bark off the root systems underground. Kill trees that had been there 20 years."
"What did you do?"
"Took us a while to figure out. But eventually we understood voles don't just move into a yard They move into a signal. They're almost blind. They read the ground. Vibrations, underground sounds, the feel of the soil. That's how they find food, map territory, know where it's safe to run."
He tapped the fence post.
"So we stopped trying to remove the voles. We started disrupting the signal. Make the ground unreadable to them, they can't function. Can't navigate, can't find the food, can't maintain the runways. And unlike traps the disruption doesn't go away after you catch something. It stays. New voles hit the same wall."
"How do you disrupt the signal?"
"In my day, on that scale, it was complicated. But now" he shrugged. "There are devices. Solar-powered. Push them in the ground, they pulse vibrations through the soil around the clock. Thirty bucks, forty bucks each."
I went inside and started researching.